Crime + investigation

The Unsolved Missing Person Case Linked to Bigfoot

Theresa Bier, 16, went on a trip to see Bigfoot in the California mountains on June 1, 1987, and hasn't been seen since.

Courtesy of the State of California Department of Justice
Published: July 06, 2026Last Updated: July 16, 2026

Theresa Bier was 16 when she went missing in 1987, and there were two main suspects: the 43-year-old man who took her on a camping trip in the mountains and—in the eyes of some—Bigfoot. Bier's case has never been solved, but she's stayed in the headlines for nearly 40 years thanks to the legendary figure some blame for her disappearance.  

Bier had gone on a Bigfoot-searching expedition with local believer and expert Russell "Skip" Welch, a man more than twice her age. Three days later, he returned alone and claimed the sasquatch had taken her. Welch was initially charged with abduction, but without a body the charges were dropped. There are some who believe he's innocent, and there are others who can't fathom how he got away with it.

Monster in My Family

A riveting series that delves into the world of infamous serial killers as the family members of the killers reach out to the families of the victims.

7-DAY FREE TRIAL

Commercial-free, Cancel anytime

Stream Now

Exclusions & terms apply

Who Was Theresa Bier?

Bier lived in Fresno, Calif., with her uncle, "Blind" Johnny Richmond, and his 17-year-old girlfriend, Tammy. Richmond, who was Bier's mother's half-brother, became Bier's guardian after her mother abused her; she had already lived with various other relatives. He was known as Blind Johnny because he claimed he lost his eyesight during a game of Russian roulette when he was 18. Tammy says in the 2025 series Bigfoot Took Her that Richmond was also abusive and forced young girls to run drugs. 

Richmond's biological daughter, Mandy, who was five years younger than Bier, lovingly described her cousin as "an oddball" and "a dork." 

"She was just happy," Mandy says in Bigfoot Took Her. "Not girly…super tomboyish. Climbing trees, not caring about getting dirty." 

But Mandy also explained that there was something "simple" about Bier. 

"If someone wanted to manipulate her, they probably could," she says. "If you told her the sun was purple, she'd probably believe you. She could be convinced to do anything." 

Who Was Russell "Skip" Welch?

Welch was a housepainter who was better known around Fresno for his obsession with Bigfoot. He was also purportedly addicted to methamphetamine and known for taking young women and girls up into the mountains, ostensibly to look for the creature. 

Fresno County, located in California's Central Valley, is a hotbed of Bigfoot sightings thanks to its proximity to the Sierra Nevada mountains. In 2018, a farmer in East Fresno County claimed he saw a whole Bigfoot family running across his farm, with one carrying a pig over its shoulder. It was the third reported sighting in that same area in five years. In the 1980s, Welch claimed to see Bigfoot all the time. 

His favorite place to spot them was a place called Ghost Canyon, which required an eight-hour hike to visit. In 1986, Michelle Ryan-Turner and her friends, Sam and Corky, accompanied Welch to Ghost Canyon and returned with a terrifying tale she told in Bigfoot Took Her. Ryan-Turner said that after she told him she'd encountered an "evil" face, Welch yelled at her to get into her sleeping bag. Later, she said she was told by Sam and Corky that the demon "went into" her and that she nearly ran right off a cliff before they stopped her. However, she added that she presumed the experience was due to her being drugged.

How Theresa Bier Disappeared

Bier was last seen on June 1, 1987, when she headed into the mountains with Welch to go Bigfoot searching, though she told Richmond that Welch was taking her to school. However, when Bier's school informed Richmond that she was absent that day, he reported her missing.

When Welch returned three days later, he told authorities that he and Bier experienced several sightings before Bier wandered off to try and find Bigfoot on her own on June 2; he said he looked for her for two days. Welch was charged with felony child stealing, to which he pleaded not guilty. 

Welch led police to a campsite on a mountain called Shuteye Peak with a purse, some photos and a few items of Bier's clothing, but that site was later found to be staged. The actual site was 20 miles away in Ghost Canyon, where nothing was found other than Welch's shirt with drugs in the pocket. 

"We also didn't find any evidence of any super-being, subhuman or any unknown creature," said police detective Doug Stokes

During that fall, Welch was released, and the abduction charge was dismissed, but not because he was no longer a person of interest. If Welch was tried for abduction and then Bier's body was later found, he could have not been tried for her homicide. He had been offered a lighter sentence (one year) for the child stealing charge but only if he waived his right to claim double jeopardy in the future. Welch refused. 

Bier has never been found, and Welch died in 1998 in Fresno. 

Where the Case Stands Now

Bier is still officially a missing person, but Bigfoot Took Her offers a few more recent perspectives from people related to the case. Welch's daughter, Chandra Welch, and her ex-boyfriend, Kenny Cook—both of whom have been to Ghost Canyon with Welch—say they don't think he killed Bier. 

"I still don't believe in my heart of hearts that he came [to Ghost Canyon] and killed that girl," Cook said. "That being said, if she fell down a hole, he would assume Bigfoot got her, and he would go to his grave believing that." 

While Chandra allegedly once told Ryan-Turner her father would lure young women and girls into the mountains to sexually assault them with the aid of drugs, she described her dad in Bigfoot Took Her as a "hippie" who tucked her in every night until she was 12. 

"He was just a great guy," she said. "He was not a bad man at all. Maybe he used really bad judgment, but he's not a killer." 

Chandra says she was under the impression that her father was helping Bier escape her abusive, drug-addicted uncle, and she says he eventually told her he had last seen Bier "talking to two guys on motorcycles." Chandra's theory was that those men were the serial killer duo known as the Speed Freak Killers. Between 1984 to 1998, Loren Herzog and Wesley Shermantine killed at least four people throughout California and the rest of the American West, and Bier fit their victim profile. However, Shermantine told private investigator Rob Dick that she "[didn’t] ring a bell." 

Bigfoot Took Her also features Jay O'Connell, a local Fresno historian and author of Meth, Murder, and Bigfoot: A California Crime Saga. He describes a large boulder in Ghost Canyon Welch viewed as a "sacrificial rock" and says Welch was interested in dark magic. 

Welch's nephew, James Welch, claims his uncle confided in him about how he would take "young girls" to Ghost Canyon "because if he didn't do that, then a Bigfoot would chase him off the mountain." He said he would throw bodies into a thousand-foot-deep mine or bury them in a creek as sacrifices to the creature. 

We may never know exactly what happened to Bier, but we can probably assume she was the victim of something much more terrifying than Bigfoot. 

Digital Trail of Missing Teen Girl Leads to Two Shocking Arrests

Show: American Justice

When a 13-year-old girl goes missing and is found murdered, virtual evidence she leaves behind leads to two shocking arrests.

13:17m watch

Related Features:

Did Ted Bundy Carry Out the 1969 Garden State Parkway Murders?

Teen Susan Davis and Elizabeth Perry were killed outside Ocean City, N.J.

7m read

Rosie Tapia’s Parents Are Still Searching for Their 6-Year-Old's Killer After More Than 30 Years

Authorities think someone living near the Salt Lake City home from which the 6-year-old was taken in 1995 may have more information.

7m read

Who Was the Atlanta Ripper?

An unidentified serial killer preyed on Black women during the 1910s.

5m read

Why Sam Sheppard—Who Inspired 'The Fugitive'—Had His Conviction Overturned

Sheppard was tried twice for the murder of his wife.

8m read

Could New DNA Analysis Break Open the Madeleine McCann Case?

The 3-year-old vanished from her family's vacation home in Portugal in 2007.

7m read

What Happened to Brenda Lambert? The West Virginia Mom Vanished After Her Son's Birthday Party

Brenda accused her husband of domestic violence before she vanished.

6m read

A Millionaire’s Wife Was Accused of His Murder, Along with Her Alleged Lover—Her Nephew

Candy Mossler and her nephew-turned-alleged-lover went on trial.

7m read

Who Is the Angel of the Meadow? The U.K. Jane Doe Mystery

She has lain unidentified in a cemetery since 2010.

6m read

Brazil’s World Cup Trophy Was Stolen in 1983 and Has Never Been Found

Brazil got to keep the Jules Rimet Trophy after three World Cup wins.

5m read

What Happened to 7-Year-Old Kyron Horman, Who Never Returned from School in 2010?

The boy disappeared after attending his school science fair on June 4, 2010.

7m read

The Nancy Guthrie Case: A Timeline

The mom of 'Today' show's Savannah Guthrie vanished February 1, 2026.

10m read

The Search for the Santa Rosa Hitchhiker Murderer Continues More Than 5 Decades Later

Seven girls and young women were murdered in California in the 1970s.

5m read

The Wonderland Murders: Inside the Brutal Crime that Inspired Hollywood

Four people were killed in the July 1, 1981, attack.

6m read

What Happened to Bonnie Lee Schultz, Who Disappeared on July 4, 1997?

The Indiana mom had previously discussed divorce with her husband Rick.

7m read

Who Killed Fitness Influencer Missy Bevers?

The exercise instructor was murdered inside a Texas church in 2016.

6m read

Ashley Summers Went Missing in 2007 at Age 14—Was She Abducted?

Family members last saw the teenager in Cleveland on July 9, 2007.

5m read

Who Killed a Louisiana Fire Chief’s Wife in 2017?

Nanette Krentel suffered a gunshot wound to the back of her head at the burned-out home she shared with her fire chief husband.

7m read

Grace Brown Thought She Was Getting Engaged on a 1906 Lake Trip—Instead She Got Murdered

Chester Gillette was convicted of Brown's killing and executed.

6m read

Who Killed TV Star Bob Crane?

The 'Hogan's Heroes' actor was murdered in Scottsdale, Ariz., in June 1978.

7m read

When Her Dad Didn’t Come Home from Work in 1987, Kate Crane Went Looking for Answers

Bullet holes and blood were found in Eddy Crane's office after he vanished.

11m read

Who Killed Mom of 2 Stephanie Wasilishin?

“The first thing she said to me in the back of the cop car is, ‘Papi killed mommy! Papi killed mommy!’”

6m read

Is Alissa Turney’s Adoptive Dad Responsible for the Teen’s Disappearance, or Did She Run Away?

Michael Turney was acquitted, but Alissa’s sister seeks answers.

7m read

Did Witchcraft Play a Role in a 16-Year-Old's 1972 Killing?

Jeannette Christine DePalma disappeared in New Jersey in August 1972.

6m read

How Racial Disparities May Have Impacted the 'Freeway Phantom' Case

Six Black girls were killed in the D.C. area during the early 1970s.

6m read

Can a Check Fraud Case Help Solve 12-Year-Old Kade Lewin’s Murder?

The seventh grader was shot and killed in Brooklyn, N.Y., on March 31, 2022.

5m read

How a Chance Encounter—and a DNA Sample—Helped Find a Missing College Student After 51 Years

Douglas Brick disappeared in 1973, and the manner of his death remains unknown.

7m read

When the Flint River Killer’s Daughter Was Murdered, His DNA Helped Break the Case

Carl Patton's daughter Melissa Wolfenbarger was murdered in 1999.

8m read

A 10-Year-Old Left for School on a Snow Day in 2005 and Never Returned

A group of kids came across Adre’anna Jackson's remains in April 2006.

7m read

Kristin Smart’s Killer Was Convicted, But the Search for Her Body Continues

Paul Flores was found guilty of the college student's 1996 murder.

6m read

Jacob Olivier's Mom Hopes to Find Son Who Went Missing in the Everglades

The 23-year-old trekked from Texas to Florida in 2011.

5m read

Could the Oakland County Child Killings Be Solved After 50 Years?

Four children were murdered in Michigan between 1976 and 1977.

6m read

A Mom Interrupted a Burglary on St. Patrick's Day 1981—Her Killer Remains Unknown

Marlene Hayes came home sick to someone burglarizing her Maryland home.

5m read

A New York Heiress Disappeared in 1910. More Than a Century Later, She Is Still Missing

Dorothy Arnold vanished in Manhattan over 115 years ago.

7m read

Shot After Her Big Break: The Unsolved Murder of TV’s Barbara Colby

Colby's character was murdered in a TV show before she died in real life.

6m read

What Happened to Brian Shaffer? Med Student Disappeared from Ohio Bar

The Ohio State medical student has not been seen since April 1, 2006.

7m read

Can True Crime Media Help Victims—and Solve Cases?

A true crime documentary or podcast can often go beyond entertainment.

6m read

Nick Yarris Spent 21 Years Behind Bars for a Crime He Didn’t Commit—Now His Story Is on Broadway

Yarris brings his story to the Great White Way with 'The Fear of 13'.

6m read

A Single Mom Was Captured from a Hospital Parking Lot After Receiving Calls from a Stalker

An unidentified caller tormented Dorothy Jane Scott for months.

6m read

Will Hair Found On Amy Mihaljevic’s Clothes Lead to a Conviction After 36 Years?

DNA advances have lead to renewed hope in the 10-year-old's case.

6m read

10 Years After the Skelton Brothers Went Missing, Their Dad, John Skelton, Was Charged with Murder

Andrew, Alexander and Tanner Skelton were declared legally dead.

7m read

A Man Killed the Mother of His Unborn Baby. Her Body Has Never Been Found

Akia Eggleston did not show up to her own baby shower in 2017.

7m read

The Wild West Deep Creek Murders That Remain Unsolved After 130 Years

Daniel Cummings and John Wilson were killed in February 1896.

7m read

Are the Zodiac Killer and the Black Dahlia's Killer the Same Person?

A self-taught codebreaker believes he’s solved two of the most vexing cold cases of the 20th century.

8m read

A Serial Killer Known As 'The Doodler' Is Likely Still At Large

Victims are still waiting for the Bay Area killer to be apprehended.

6m read

Nearly 4 Decades Later, Venus Xtravaganza’s Murder Still Haunts the LGTBQ+ Community

The transgender woman stood out in the documentary 'Paris Is Burning'.

6m read

How Did Katarzyna Zowada Die? The College Student's Corpse Was Skinned

The college student’s remains were found in the Vistula River in 1999.

7m read

When Does an Investigation Become a Cold Case?

JonBenét Ramsey and Madeleine McMann's cases both fall into that category.

6m read

A Psychic Claims She Knows Who Killed Long-Missing Dad George Carroll, Found Buried Beneath His Home

Dorothy Carroll didn't file a missing person’s report for him.

5m read

After 40 Years, Can Dian Fossey’s Murder Be Solved?

The zoologist was 53 years old when she was slaughtered in 1985.

5m read

The 1990 Isabella Stewart Gardner Museum Robbery Is Still the Biggest Unsolved Art Heist in the U.S.

Two thieves left the Boston museum with 13 masterpieces in 1990.

7m read

The 5 Cold Cases True Crime Influencer Mike Brieaddy Most Wants to See Solved

His Making a True Crimerer channels cover unsolved mysteries.

8m read

New DNA Testing Techniques Might Lead to Answers in Susan Poupart’s Disappearance After 35 Years

The body of the mother of two was found on Thanksgiving in 1990.

7m read

The Fatal Stabbing of Penn State Student Betsy Aardsma Remains Unsolved More Than 55 Years Later

The grad student was fatally stabbed in a university library.

7m read

The Death of Sandra Denise Thomas: A Small Town Tries to Crack a Cold Case

The body of the Fuquay-Varina, North Carolina woman was found in a ditch with injuries consistent with being thrown...

6m read

How a Group of Active and Retired Homicide Investigators Anonymously Solve Cold Cases

Retired investigator Joe Kennedy established a coalition of investigators who help police departments in the U.S. solve cold cases.

8m read

The Still Unsolved 1879 Atlanta Double Killing That Rattled the Nation

The DeFoors were found hacked to death in their Georgia home.

6m read

A Reporter's Role in the Oldest Prosecution of a Serial Killer in U.S. History and Covering Civil Rights Era Murders

A&E speaks with journalist Jerry Mitchell about his book and how to handle cold cases.

8m read

The Delphi Murders: Why Police Have Not Released Details on the Murders of Libby German and Abby Williams

Since the 2017 murder of Indiana teens Libby German and Abby Williams, local authorities have not released any information about the cause or time of death of either victim, leading to rumors and speculation. We spoke with Indiana State Police First Sgt. Jerry Holeman about why the police are holding back details about the murder.

6m read

Who Murdered Sophie Toscan du Plantier? Producer's Mysterious Death Remains Unsolved

The French producer's murder in West Cork shocked the normally crime-free region of Ireland.

6m read

Who Was Jack the Stripper, Serial Killer of London in the 1960s?

In the 1960s, an unidentified serial killer terrorized London sex workers.

5m read

Are the Smiley Face Killers Real?

Nearly 20 years ago, retired NYPD detectives started tracking the suspicious drownings of young men across the country.

6m read

The Lane Bryant Shootings: Chicago Mass Murder Still Unsolved More Than 10 Years Later

On February 2, 2008, a man walked into a woman's clothing store in Chicago and shot and killed five women. It's one of the worst mass murders in the city's history, and the murderer is still on the loose.

7m read

The Tylenol Murders: Is It Too Late to Solve the Famous Cold Case?

On September 29, 1982, and in the few days that followed, seven people in the Chicago area died in Tylenol-related poisonings. The capsules were all laced with cyanide. The killer or killers have never been found.

8m read

Nadia Malik's Mysterious Death Still Unsolved

A Pennsylvania woman was found dead in her car in 2014 after getting into an argument with her boyfriend. The cause of her death is unknown.

10m read

The Unsolved Rainbow Murders: What Happened to Vicki Durian and Nancy Santomero?

The double murder of hitchhikers Vicki Durian and Nancy Santomero in the summer of 1980 shook Pocahontas County, West Virginia. Nearly 40 years later, the Appalachian community is still haunted by the unsolved case, now known as the 'Rainbow Murders.'

6m read

What Happened to Hannah Upp? The Mystery Around the Young Woman's Disappearance Continues

The mysterious multiple disappearances of Hannah Upp have been a public fascination for years—but are we any closer to finding answers?

6m read

The Mysterious Unsolved Murders of Sisters Barbara and Patricia Grimes

On December 28, 1956, the Grimes sisters, 15 and 12, left home to watch heartthrob Elvis Presley in Love Me Tender in Chicago. Six decades later, their inexplicable murder remains unsolved.

7m read

The Black Dahlia: How 'Moral Panic' Gripped the Community in the Wake of Elizabeth Short's Gruesome Murder

After the still-unsolved murder of Elizabeth Short—the 22-year-old woman and aspiring starlet later dubbed 'The Black Dahlia'— the media and preachers used the case to warn young women of what could happen when you try to leave your family and seek fame.

6m read

Will the West Mesa Serial Killer Ever Be Identified?

In the 2000s, the New Mexico desert became a graveyard for 11 females and an unborn child—their lives taken by a serial killer who became known as The West Mesa Bone Collector.

6m read

Will New DNA Confirm Jack the Ripper’s Identity?

Although multiple suspects have been named, no one was convicted.

8m read

About the author

Lauren Piester

Lauren Piester is a writer and entertainment expert in Los Angeles. She spent eight years at E! News, and her bylines can be found at Parade, NBC Insider, Variety, TV Guide, Salon, The Wrap and more. When she's not writing, she's crafting, or rearranging her apartment to make room for more crafts.

More by Author

Fact Check

We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! A&E reviews and updates its content regularly to ensure it is complete and accurate.

Citation Information

Article Title
The Unsolved Missing Person Case Linked to Bigfoot
Website Name
A&E
Date Accessed
August 12, 2026
Publisher
A&E Television Networks
Last Updated
July 16, 2026
Original Published Date
July 06, 2026
Advertisement
Advertisement
Advertisement