California 1980 Cold Case Solved – Arrest Shocked Community | Maricela Rocha Parga

A murder victim whose identity remained unknown for 46 years has finally been identified. She had been stabbed repeatedly and was pregnant.

>> We are here to share the news. It’s been more than 45 years in the making.

Today, thanks to our cold case unit, we finally have put a name to a young woman who for decades was known only as Jane Doe.

On July 18th, 1980, a maintenance worker walked his usual route across the campus of Westlake High School in California.

Down in the lower parking lot, families were laughing, cheering at a youth sporting event, completely unaware that 40 yards away.

On a dirt slope above the football field lay the body of a young woman.

She had been strangled until she lost consciousness, then stabbed 16 times. She was four to 5 months pregnant and she had no name, no purse, no identification, no wallet, just a white top, red corduroy pants and a pair of black high heeled sandals kicked into the brush beside her.

For the next 46 years, she would be known only as Jane Dovventura County. Her killer would be caught, convicted, sentenced to life in prison, and still nobody would know who she was.

This is the story of how a woman disappeared so completely that even her own murder conviction couldn’t bring her back her name and how one nonprofit organization spent 7 years building a family tree of over 125,000 people just to find it.

Her name was Marisella Roacha Para and this is how she was found. It was a Friday afternoon, July 18th, 1980 when the call came in.

A body had been found on the grounds of Westlake High School in Westlake Village, California, but not out in the open, not somewhere a passer by might stumble onto by accident.

She was up on a remote dirt slope in the school’s upper parking lot, hidden from the lower fields where a youth sporting event was drawing families and children just a few hundred feet away.

When deputies from the Thousand Oaks Police Department arrived, the scene told them almost immediately that this wasn’t where the crime had happened.

There were high-speed drag marks cutting through the dirt and a trail of blood running down the slope, the unmistakable signature of a body that had been dumped, not killed, at that location.

She was sprawled on her back, her face tilted up toward the sun. Her white short-sleeved top and red corduroy pants were still on her, but her black open toed sandals had been pulled off and tossed into the nearby brush as if discarded in a struggle or as an afterthought by whoever left her there.

There was no purse, no wallet, no identification of any kind. Investigators found tire tracks preserved in the soil nearby, but curiously no footprints belonging to a suspect, which told them the body had likely been pulled straight from a vehicle rather than carried or dragged by someone on foot for any real distance.

A motorcycle was discovered abandoned in the bushes close to the scene. And for a moment, detectives thought they might have their first real lead.

It turned out to be nothing more than a coincidence. A local motorist who had simply run out of gas and left his bike there with no connection to the crime at all.

What they were left with was a Jane Doe, a young woman, clearly a victim of violence with absolutely no way to identify her.

But the crime scene was only the beginning of what the evidence would reveal. What the medical examiner found next would tell a story that went far beyond a single isolated act of violence, and it would raise a question that wouldn’t be answered for nearly half a century.

At the Ventura County Medical Examiner’s Office, the full extent of what had happened to this young woman became clear.

She had fought for her life. Her hands and arms bore multiple defensive cuts, abrasions, and deep bruising, the marks of someone who had struggled desperately against her attacker.

And in a detail that would prove critical decades later, her red lacquered fingernails were still fully intact.

Investigators were able to collect biological scrapings from beneath them. Evidence that unknown to anyone in that room in 1980 was quietly preserving her killer’s DNA.

The medical examiner documented extensive hemorrhaging around her neck. She had been manually strangled, strangled to the point of complete unconsciousness before the final fatal violence occurred.

The official cause of death was multiple stab wounds. She had been stabbed 16 times, her chest and abdomen punctured repeatedly, puncturing vital organs.

It wasn’t a single act of rage. It was prolonged. It was sadistic. And then came a detail that changed the entire framing of the case.

She was 4 to 5 months pregnant, carrying a well-nourished male fetus. An azysotomy scar on her body told investigators something else.

This wasn’t her first pregnancy. She had carried a child to term before. Her toxicology came back completely clean.

No alcohol, no drugs, and her teeth showed a history of extensive highquality dental care, a small but telling detail about the kind of life she had been living before it was taken from her.

The manner of death was officially ruled a homicide. But even with all of this evidence, a DNA profile, literally trapped beneath her own fingernails, investigators in 1980 had absolutely no way to use it.

The technology to read that genetic code simply didn’t exist yet. So, detectives did what they could.

They circulated sketches. They ran her description through missing person’s files and they came up with nothing.

What they didn’t know, what nobody in that investigation could have possibly known was that just 4 days before her body was found in an orchard 80 m away in Kern County, another young woman had been discovered.

Strangled, stabbed, left with the exact same defensive wounds. And there was no system in place, no digital network, nothing that would allow two separate county sheriff’s departments to realize they might be looking for the very same man.

Before she was a Jane Doe, before she was a case file, Marisella Roachcha Para was a 22-year-old woman building a life for herself in a new country.

She was born in Mterrey, Mexico in 1958. In the late 1970s, her family made the decision so many immigrant families make.

They left everything they knew and moved to the United States, settling into a home in downtown Los Angeles in search of something better.

Her siblings would later describe her as fiercely independent, deeply caring, and protective of the people she loved.

She had a 2-year-old daughter of her own, and she was working relentlessly to give that little girl a future.

By day, she waited tables in downtown Los Angeles. By night, she attended nursing school, working toward a career that would lift her and her daughter out of the daily grind of a waitress’s paycheck.

It was an exhausting, structured life, the kind built entirely around sacrifice for someone else.

But it also meant Marisella didn’t own a car. In early 1980s Los Angeles, public transit was fragmented and unreliable.

And it wasn’t unusual for young women in her position to hitchhike or accept rides from acquaintances or even strangers just to get from a nightclass back home.

It was simply how many people got by. That single ordinary vulnerability. A young mother without a car moving through a sprawling city late at night is what investigators now believe made her a target.

She had already survived so much just to get to this point in her life.

She had crossed a border, built a routine, was working two jobs at once toward a nursing degree.

What she couldn’t survive was an evening in the summer of 1980 when she never made it to her little sister’s birthday party.

The last time her family saw Marisella alive was in June of 1980 when she met with her older sister, Rosalinda Vega.

There was nothing unusual about the visit. Nothing that suggested anything was wrong. Then in July came the day that would haunt her family for the next 46 years.

The 10th birthday party of Marisella’s younger sister, Alma Ivonne Braden. Marisella was supposed to arrive with the cake.

She never showed up for a family that had already sacrificed so much to build a new life together in America.

Marisella’s absence wasn’t just unusual. It was instantly, viscerally wrong. She was devoted to her siblings, dependable in a way that made her disappearance immediately alarming.

Elma, only 10 years old at the time, later said she felt an immediate gut-level certainty that her sister was never coming back.

When she vanished, Marisella was last known to be wearing a white short-sleeved top and red corduroy pants.

The very same clothes she would be found in weeks later. She didn’t own a car, her purse, her identification, everything that could have told the world who she was disappeared along with her.

And because this was 1980, there was no cell phone data, no ATM transaction, no digital trail of any kind for investigators to follow.

Her family didn’t wait quietly. Rosalinda walked the streets of Los Angeles herself searching. They filed missing persons reports they called hospitals, but there was a fatal flaw baked into the entire system they were relying on.

Marisella had vanished and was reported missing in Los Angeles County. Her body, when it was found, was in neighboring Ventura County.

Two separate counties, two separate files, no shared database, no way for anyone to connect a missing person’s report on one side of a county line to a homicide investigation on the other.

The system that was supposed to protect her and later to identify her failed at the very first step, and it would take a genetic revolution nearly 40 years later to finally undo that failure.

But while Marisella’s family searched for her in Los Angeles, and while Ventura County investigators searched for a name to attach to their Jane Doe, the man responsible for her death was already on the move, and he was far from finished.

His name was Wilson Claude Shuest Jr. Friends and acquaintances knew him by a nickname, Poochie.

Born on December 2nd, 1951 in New Orleans, Louisiana, Shuest had, by all accounts, an unremarkable start.

He was even an alter boy at one point with early ambitions toward the priesthood before being expelled from Catholic school.

By 1969, he had a criminal record. In 1972, a fraud conviction sent him to prison, but it was in October of 1977 that Shuest revealed the true nature of the violence he was capable of.

He offered a 20-year-old woman a ride near Topanga Canyon. What she didn’t know was that Chuist had already removed the interior door handles from the passenger side of his vehicle so that once she was inside, she had no way to escape.

He threatened her with a knife, bound her hands, and drove her to a secluded hillside where he her and then strangled and kicked her until she lost consciousness.

She survived. Chuest stole her clothing and her purse before leaving her there. He was convicted of kidnapping and robbery and was parrolled in June of 1980.

One month later, Marisella Roachcha Para disappeared. After his release, Chuest had begun corresponding with a woman named Carolyn Bell, who he’d connected with through a penpaul ad in a biker magazine.

He moved into her home in Lore, California. And in July of 1980, while Carolyn was hospitalized in an alcohol detox facility, Chu took her green Chrysler and vanished overnight.

He returned the next morning with a large pool of blood in the rear footwell of the car.

He told Carolyn’s sons he’d hit a deer and made them help him clean it up.

But he told her 13-year-old son, Patrick, something very different, that he had met some broad in a bar and he killed her.

A 13-year-old boy was carrying around a confession to murder, and there was no system in place that would connect his knowledge to the two dead women lying in morgs in Ventura and Kern counties.

Chowist wasn’t finished. In August and September of 1980, he abducted two college students from the College of the Sequoas in Vicelia, raping one of them in a cornfield.

This time, he was caught, arrested in September 1980, convicted that November, and sentenced to life with the possibility of parole.

It would take 33 more years, and a technology that didn’t exist yet in 1980 for anyone to connect this man to the young pregnant woman found on a dirt slope at Westlake High School.

By the close of 1980, the investigation into the Westlake High School Jane Doe had ground to a complete halt.

The most basic obstacle was technological. DNA profiling simply didn’t exist as an investigative tool.

In 1980, investigators had blood typing and physical comparison, and that was essentially it. The genetic evidence beneath Marisella’s fingernails, evidence that would eventually solve this case was completely useless to the detectives who collected it because the science to read it hadn’t been invented yet.

Then there was the jurisdictional wall. Los Angeles maintained a missing person’s file for Marisella.

Ventura County maintained a Jane Doe homicide file. Two separate government systems, two separate counties, and absolutely no automated way to cross reference the two.

A woman could be actively searched for by one police department while her body sat unidentified in another department’s morg less than an hour’s drive away and nobody would ever know.

There’s a darker layer to why this case went cold, too. Detectives original files contain speculation entirely unsupported by any physical evidence that the victim might have been a prostitute.

That assumption did real damage. It quietly deprioritized her file. It framed her in the eyes of an overburdened system as a transient person unworthy of the aggressive cross-count effort that might have connected her disappearance to her death.

And then over the following decades came one more devastating blow. The physical rape kit collected during Marisella’s original 1980 autopsy was lost.

Misplaced somewhere during years of jurisdictional transfers and evidence vault reorganizations. A common, quietly tragic failure point in cold cases that stretch across generations.

It would have been easy for this case to simply stay buried under all of that technological limitation, bureaucratic walls, and institutional bias stacked on top of each other.

But by pure fortune, one piece of evidence had survived all of it. The clothing Maricello was wearing when she died, and the scrapings taken from beneath her fingernails still sitting untouched in the Ventura County Sheriff’s Evidence vault.

Nobody in 1980 could have known it, but that evidence was simply waiting. Waiting for science to catch up.

In 2011, detectives with the Ventura County Sheriff’s Office cold case unit pulled the decades old evidence out of storage and looked at it again with fresh eyes and modern tools.

Even without the lost kit, forensic scientists were able to extract a viable male DNA profile from two alternative sources, the fingernail scrapings taken during her autopsy and fibers from her clothing.

It was proof of something forensic investigators would come to rely on again and again in cold cases that even when the most obvious piece of evidence is gone, alternative sources can still hold the answer if they’ve been preserved carefully enough.

In January 2013, that DNA profile was uploaded to the FBI’s combined DNA index system, COTUS, the national database that compares genetic profiles from crime scenes against those of convicted offenders.

The hit came back almost immediately. Wilson Claude Shuest Jr. For the first time in over three decades.

The man responsible for the death of the Westlake High School Jane Doe had a name.

And that same DNA match allowed prosecutors to do something else. Formally connect Marisella’s murder to the death of Shirley Anne Suz, the woman found in the Kern County Orchard just 4 days before Marisella’s body was discovered.

The same man, the same signature. Two separate crime scenes that had sat unconnected for 33 years, finally linked by a single genetic profile.

Chuis was transferred to Ventura County Jail in September 2015 and charged with three counts of murder.

But there was a strange, almost unprecedented problem facing prosecutors as they prepared for trial.

They knew exactly who had killed these two women. They still had no idea who either of the women actually was.

In May 2018, the trial of Wilson Claude Shuest Jr. Began in Ventura County Superior Court with senior deputy district attorney John Bareric leading the prosecution.

The case rested heavily on the DNA recovered from both victim’s fingernail scrapings, physical proof that Chuist had been in direct contact with each woman during the final violent struggle of her life.

To build a complete picture of who Chuist was and how he operated, prosecutors brought in testimony from three of his surviving victims from 1977 and 1980, describing the same chilling pattern each time, luring women into his vehicle, driving them to remote hillside or agricultural areas, assaulting them and attempting to strangle them into unconsciousness.

Carolyn Bell and her son Patrick also took the stand, describing the blood in the Chrysler and the confession Chewist had made to a 13-year-old boy nearly four decades earlier.

The defense led by public defender Andre Ninchaf argued that DNA presence didn’t prove Chewist had been at the dump sites themselves and went further claiming the sec contact between Chuist and both women had been consensual.

On May 31st, 2018, the jury returned guilty verdicts on both counts of first-degree murder.

There was one verdict the jury couldn’t reach, though, and it wasn’t for a lack of evidence.

Because of retroactivity restrictions tied to fetal homicide laws that weren’t updated until 1994, prosecutors were legally barred from charging Shuest with the death of Maricella’s unborn son, even though the pregnancy and its violent end had been documented in detail since 1980.

Chowis was sentenced to two consecutive life terms without parole plus four additional years and remains incarcerated at the California substance abuse treatment facility and state prison in Corkran.

Justice in a legal sense had been served. Wilson Chowist would die in prison, but something essential was still missing from the story.

Something no verdict, no sentence, and no courtroom could restore. The two women he murdered still had no names.

In 2018, the same year Chest was convicted, the Ventura County Sheriff’s Office made a decision that would ultimately take seven more years to pay off.

They partnered with a nonprofit organization called the DNA Dough Project, whose entire mission is to use investigative genetic genealogy to identify unknown victims like Marisella.

The process is far more complex than the Cotus match that identified Chuest. COTUS compares roughly 20 points of genetic data, enough to match a known offender’s profile against crime scene evidence, but useless for identifying someone who has no criminal record and no reference sample anywhere in a government database.

Investigative genetic genealogy works completely differently. It uses SMP testing, analyzing up to a million comparison points across the genome to find genetic relatives, however distant, and reconstruct entire family trees until they lead back to a single person.

A laboratory called Fulgen Genetics handled the extraction and sequencing of Marisella’s badly degraded sample.

While a specialist named Greg Mcun performed the biioinformatics work needed to convert that raw genetic data into a profile usable for genealological research.

That profile was then uploaded to two databases used for this kind of work. Ged match pro and family tree DNA.

And immediately researchers hit a wall that has become one of the most significant challenges in modern forensic genealogy.

Marisella’s ancestry traced back to Mexico and commercial genetic databases have historically low representation of individuals with Mexican and indigenous heritage.

Instead of finding close relatives, the match list returned nothing but extremely distant cousins. For most cold cases, that might have been the end of the road.

Instead, it became the beginning of an extraordinary 7-year effort. More than 40 volunteers from the DNA Dough Project, including researchers Carl Complman and team leader Rebecca Summerhalter, began the painstaking work of building out a family tree using nothing but those distant genetic threads.

Not dozens of names, not hundreds. Over the course of seven years, they constructed a family tree containing more than 125,000 individuals, tracing branch after branch back through generations of records, trying to find the point where all those distant cousins converged on a single common ancestor.

Eventually, the tree led them to a couple born in the late 1800s in the Mexican state of Zacatus.

Very likely, the researchers believed Marisella’s great-grandparents. Now they just had to find their way back down through the branches from a couple born over a century earlier all the way forward to a living relative who might still remember a woman who vanished in the summer of 1980.

On December 9th, 2025, investigators reached a descendant of that Zacus couple, a great grandson living his life with no idea that a research team had spent years tracing a genetic thread directly to his family.

When they explained why they were calling, he told them something that confirmed everything the DNA dough project had worked seven years to prove his sister had gone missing from Los Angeles in 1980.

Her name was Marisella Rocha. The very next day, December 10th, 2025, two of Marisella’s siblings boarded a flight to California to provide reference DNA samples.

The final piece needed to convert a genealological theory into a scientific certainty. In January 2026, laboratory testing officially confirmed what the family already knew in their hearts.

The Jane Doe found on that dirt slope above West Lake High School’s football field in 1980 was their sister.

46 years after she disappeared on the evening of her little sister’s 10th birthday party, Marisella Roachcha Para finally had her name back.

On February 23rd, 2026, Ventura County Sheriff Jim Fryhoff and District Attorney Eric Nasareno stood together at a joint press conference and told the world who she was.

For nearly 46 years, Marisella’s family lived inside a grief with no ending. Her siblings, who were only 9 and 10 years old when she disappeared, grew into adults still searching.

Rosalinda Vega spent years walking the streets of Los Angeles, examining the faces of homeless individuals, holding on to the fragile hope that her sister might have survived some accident.

Lost to amnesia rather than to violence. Their mother died with Marisella’s name still on her lips, never once learning what had happened to her daughter.

When the identification was finally announced, the family described a wrenching mixture of relief and fresh pain.

Elma Braden, the little sister whose 10th birthday cake never arrived, spoke publicly about the emotional weight of finally learning the brutal details of her sister’s death, describing how she replayed Marisella’s final moments over and over in her mind, unable to stop.

On April 22, 2026, during National Crime Victim’s Rights Week, the Roachcha family was presented with a resilience award.

Ronaldo Roachcha expressed deep gratitude to the investigators and genealogologists who had spent years working the case, saying that finally knowing her true name allowed the family to begin healing and to lay their sister to rest under the identity that had been stolen from her for nearly half a century.

There’s one more detail from the forensic record worth sitting with. Scientists were able to isolate paternal DNA from the male fetus Marisella was carrying when she died.

It didn’t match Chu West or any offender registered in Cotus, confirming that her pregnancy had nothing to do with the man who murdered her.

She was building a family. She had a 2-year-old daughter waiting for her and another child on the way.

She was, by every account from the people who loved her, in the middle of an ordinary, hopeful life.

The resolution of Marisella’s case left behind more than just an answer for one family.

It left behind a road map and a warning for how modern law enforcement approaches cases just like hers.

It proved definitively the difference between COTUS and investigative genetic genealogy. COTUS is powerful for catching known offenders, but it is structurally incapable of identifying an unknown victim when there’s no direct reference sample in the system.

Genetic genealogy using SNIP analysis across up to a million data points instead of Cotus’ 20 is what makes it possible to trace someone back through distant cousins and reconstructed family trees.

Even when there’s no direct match anywhere in the database. It also exposed a systemic gap that genealogologists are still working to close the underrepresentation of Hispanic, Latino, and indigenous populations in commercial DNA databases.

Marisella’s case wasn’t solved because her closest relatives happened to be sitting in a database somewhere.

It was solved because 40 volunteers were willing to manually build a tree of 125,000 people to compensate for a gap the databases themselves couldn’t fill.

And finally, it proved the value of preserving evidence that might not seem important at the time.

The primary kit in this case was lost. If the story had ended there, this case might still be unsolved today.

It was the clothing and the fingernail scrapings, items that could have easily been discarded as secondary evidence that ultimately gave forensic teams everything they needed.

First for the Cotus match and later for the genetic genealogy that finally gave Marisella her name.

Nationally, this case is a single resolved story inside a staggering ongoing crisis. There are still roughly 70,000 active unidentified remains cases in name use today, part of a broader pool of more than 50,000 unidentified bodies across the country.

Genetic genealogy analysis costs roughly $8,000 per case, a number that stands as a real ongoing financial barrier for smaller local agencies.

And yet, when database representation is adequate, the success rate for identifying someone through a third cousin or closer match sits above 90%.

Marisella’s case is proof of what’s possible. It’s also proof of exactly how much work, money, and time it can take to get there and how many other Jane and Jon does are still out there waiting for their own version of this outcome.

Marisella Rocha Para was 22 years old. She was a waitress, a nursing student, and a mother.

She was in the middle of building a life for herself and her family in a new country, carrying a second child, dedicated enough to her family that missing her sister’s birthday party was in itself an alarm bell loud enough for a 10-year-old to instantly know something was terribly wrong.

For 46 years, she existed only as a case number, a Jane do, a set of evidence bags sitting quietly in a Ventura County vault, waiting for science.

And for 40 volunteers willing to spend 7 years building a family tree spanning 125,000 people to finally bring her home.

Her killer is behind bars for the rest of his life. Her family finally has an answer.

And her name, Marisella Rocha, is no longer missing. But Marisella’s case didn’t happen in isolation.

Just 4 days before her body was found at Westlake High School, another young woman was discovered in an orchard in Kern County, raped, strangled, and stabbed in almost the exact same way.

For decades, investigators had no idea the two deaths were connected. She too spent years without a name until her own identity was finally uncovered in 2021.

Her story is just as devastating and just as remarkable, and it’s the case that first helped investigators understand exactly what kind of man they were dealing with.

If you want to know who she was and how her identification helped set the stage for everything that happened in Marisella’s case, that video is right here.

Go watch it next.