Trained to Kill: The Dog Trainer, the Heiress and the Bodyguard

Trained to Kill: The Dog Trainer, the Heiress and the Bodyguard

Host: CBS News

Mark Stover was a talented dog trainer, better known as the dog whisperer of the Pacific Northwest. He was charismatic and attracted the attention of wealthy blonde heiress Linda Opdyke. They built a business together, along with a marriage. But Linda said Mark also had a dark side and when she tried to leave the marriage, he obsessively followed. She sought the protection of a security expert Michiel Oakes who soon became the new love of her life, her knight in shining armor. But when blood was found in Mark’s home and he was reported missing, detectives went looking fo...

Episodes

Presenting Up and Vanished Weekly: Peter Van Sant discusses Mark Stover
01June 03, 2025 2:15am

Presenting Up and Vanished Weekly: Peter Van Sant discusses Mark Stover

When celebrity dog trainer Mark Stover mysteriously vanished, authorities were left with many unanswered questions. Soon into their investigation, they unearthed a dark love triangle, with Mark placed squarely in the middle. So what transpi…

Time Will Tell
02May 14, 2025 2:01am

Time Will Tell

Mark Stover’s body was still missing when the trial over his death began. Michiel Oakes said the body would prove his innocence, and that he would reveal everything when he took the stand. Get ad-free access to episodes of Trained to Kill: …

Put Up or Shut Up
03May 07, 2025 2:01am

Put Up or Shut Up

Detectives compare how the evidence found at Mark Stover’s house measures up to Michiel Oakes’ version of events. They discovered cell phone records, witnesses, and surveillance video that painted a more premeditated picture.Get early, ad-f…

The Bundle in the Back
04April 30, 2025 2:01am

The Bundle in the Back

Michiel Oakes said he tried to negotiate with Mark Stover to end the vicious back and forth. But the way he told the story, everything went wrong during their final meeting, on October 28th, 2009. The day Mark disappeared and the day Michie…

Secret Meetings
05April 23, 2025 2:01am

Secret Meetings

After police got an anonymous tip that Mark Stover was transporting drugs, he became paranoid that Linda Opdycke was out to get him. In a battle between exes, each side claimed the other was escalating the situation to a deadly point of no …

The Hunter
06April 16, 2025 2:01am

The Hunter

Linda Opdycke fled her family’s property and lived on the run, determined to separate from her husband Mark Stover. In her efforts to defend herself against what she called his relentless stalking and harassment, Linda met a former security…

Puppy Love
07April 09, 2025 2:01am

Puppy Love

Mark Stover trained the dogs of the rich and famous. When Linda Opdycke, the daughter of a multi-millionaire, hired him to train her new attack dog, they started combining business and pleasure. Their partnership lasted for more than a deca…

Who Was The Hunter & Who Was The Hunted? | Trained to Kill
08April 02, 2025 2:30am

Who Was The Hunter & Who Was The Hunted? | Trained to Kill

When celebrity dog trainer Mark Stover disappeared from his home in Washington State, leaving behind a scene covered in blood, no one knew if Mark was the victim or the perpetrator. As detectives unraveled the clues, they discovered a twist…

Where is Erin? | Presenting "48 Hours: NCIS"
09November 05, 2024 11:00pm

Where is Erin? | Presenting "48 Hours: NCIS"

Marine wife Erin Corwin was just 19 years old when she disappeared in California’s Joshua Tree National Park. Nearly two months later, her body was found in an abandoned mine in the unforgiving desert, and suspicions quickly fell on a fello…

Listen Now: Candyman: The True Story Behind the Bathroom Mirror Murder
10October 03, 2024 2:00am

Listen Now: Candyman: The True Story Behind the Bathroom Mirror Murder

Ruthie Mae McCoy’s frantic 911 call stated, “They want to come through the bathroom.” Nearly three days later, police found her shot to death, her apartment breached through her bathroom medicine cabinet. In the new "48 Hours" podcast, Cand…

Moonless Night | Murder in the Orange Grove from 48 Hours
11September 25, 2024 2:00am

Moonless Night | Murder in the Orange Grove from 48 Hours

On a moonless night, a terrifying tale unfolded involving an alleged kidnapping and a murder, all within a timeline that didn't quite add up. 19-year-old Kim Hallock found herself at the center of a traumatic event – one that would forever …

Is Crosley Green Innocent? | Murder in the Orange Grove from 48 Hours
12September 17, 2024 2:01am

Is Crosley Green Innocent? | Murder in the Orange Grove from 48 Hours

In 1990, Crosley Green, a Black man, was convicted of shooting Chip Flynn and was sentenced to death by an all-white jury. Green claimed innocence, but, despite inconsistencies in the case, his pleas were left unheard. “48 Hours” correspond…

The Aftermath
13June 12, 2024 2:01am

The Aftermath

How to make sense of this incomprehensible tragedy? Detective Brian Byerson has been in touch with Ashley Hargan weekly since her mother and sister were killed. She not only testified at trial; she made some dramatic moves after she discove…

Toe on the Trigger
14June 05, 2024 2:01am

Toe on the Trigger

Detectives finally arrest a suspect in the Hargan family murders. But at trial, defense attorneys argue a new theory for how the killings might have happened. And that theory might cast enough doubt to throw the entire trial into question.G…

The Impersonator
15May 29, 2024 2:01am

The Impersonator

Investigators think they know who killed the Hargan women, but can't seem to get a confession. Then, a representative from Capital One bank sent them recordings of some strange phone calls made the day before the shootings. Someone pretendi…

A Killer in Plain Sight
16May 22, 2024 2:01am

A Killer in Plain Sight

When detectives started investigating the deaths of Helen and Pamela Hargan, they came to a much different conclusion than the first responders on the scene. This was not a murder-suicide; it was a double homicide. But who could have killed…

The Boyfriend
17May 15, 2024 2:01am

The Boyfriend

On the day that Helen Hargan and her mother Pamela were found dead, Helen's boyfriend Carlos spent hours convincing 911 dispatchers to send help to the Hargan house. By the time police arrived, it was too late. But Carlos' story would blow …

Home From Texas
18May 08, 2024 2:01am

Home From Texas

Pamela Hargan lived in a wealthy Virginia suburb, surrounded by family: her daughters Megan and Helen and her granddaughter all lived with her in her million-dollar home. From the outside, the Hargan women had it all. But when Pamela and He…

A Betrayal Like No Other — Blood is Thicker: The Hargan Family Killings
19April 23, 2024 4:17pm

A Betrayal Like No Other — Blood is Thicker: The Hargan Family Killings

Pamela Hargan was a successful businesswoman and a devoted mother to three adult daughters. The Hargans were a typical suburban family until one day, Pamela was gunned down in her own home and her youngest daughter, Helen, was found dead up…