Following the tragic shooting of a beloved high school teacher at his residence, his wife turned herself in to authorities. The investigation now seeks to uncover whether this was a case of self-defense in a domestic violence situation or premeditated murder.

“This case was not about who committed the act,” remarked Deputy District Attorney Keith Watanabe on Oxygen’s Snapped during an episode aired on March 29. “The crux of the matter was understanding her motive and determining if her actions were justified.”

What Happened to Jason Harper?

On August 7, 2012, Carlsbad, California police were dispatched for a welfare check on Jason Harper, a father of three. Although welfare checks are routine, this request was unusual because it came through a confidential number at the police department.

“The caller identified himself as Paul Pfingst, a former district attorney and a well-known defense lawyer in San Diego County,” Watanabe recounted.

Upon reaching Jason and Julie Harper’s residence, officers found no one answering the door but managed to gain entry through an unlocked entrance. What awaited them inside was unexpected.

“They encountered a cluttered environment, resembling that of a hoarder’s home,” shared Carlsbad Police Detective Jeff Smith with Snapped. “There were piles of clothing and bags scattered across the floor, making it difficult to move around.”

Spotting an unusually dense pile of clothing, police peeled away the layers and discovered Jason’s body, dead from a gunshot wound to his back. 

Who Was Jason Harper Before His Murder? 

Jason was known as a “gentle giant” in his community—not solely because he was 6-foot-7 and weighed 230 pounds.

“His demeanor was so calm,” Jason’s coworker Laura Ogan shared. “He could be very intimidating because he was tall, but just a sweet, sweet, sweet person.” 

Jason and Julie met decades earlier at a party and six months into their relationship, they got engaged. Julie was a stay-at-home mom while Jason worked as a math teacher and volleyball coach at Carlsbad High School. 

The Harpers represented “the American dream,” former Crime Watch Daily correspondent Andrea Isom said. “They had what most people want.” 

Or at least, that’s what people thought.  

When police contacted Pfingst, the attorney who requested Jason’s welfare check, his response was bewildering: He was representing Julie, noting that she and the kids were at her father’s house and she would be turning herself into law enforcement. 

After her attorney said she was the victim of domestic violence, police began investigating the claims and found a call for service—made by Julie and Jason’s eldest son—for a verbal dispute nine months earlier.

During interviews with the kids, they said their parents had argued over a computer the morning of their dad’s death. When Julie claimed to have hidden the device in the bedroom, Jason went upstairs to retrieve it, with her on his heels. The children heard a thud and when they went upstairs to check, Julie said their dad had fallen off a chair and shooed them away. 

Julie later said their dad was sleeping and that she was taking them to a coffee shop, followed by their grandfather’s house.   

“It almost seems psychopathic,” said Watanabe, “that she was able to go about her day in such a nonchalant manner while planning her next steps.” 

Soon, authorities learned their marriage was crumbling as Julie allegedly struggled with postpartum depression and an addiction to pain medication, originally prescribed for rheumatoid arthritis.

Plus, there was alleged financial fraud, with authorities noting Julie had written two $4,500 checks against Jason’s credit cards, cashing them one week before his death. 

Then, five days before his death, Julie filed for divorce.

“She cites, ‘I don’t feel safe, he’s abusing me, I’m afraid,’” said Isom. “Those are the things she wanted to make sure were on the record before she did this.” 

What Happened to Julie Harper?

While searching the Harper home, detectives located a backpack hidden in the attic that contained Jason and Julie’s cell phones, jewelry, passports and Jason’s will. 

“This appeared to me to be a getaway bag,” said Watanabe. “It’s something that a killer would use in order to flee the jurisdiction.” 

In Sept. 2014, Julie went on trial for premeditated murder. 

Julie told the court she was afraid of Jason and that he would rape her daily. 

On the day of his murder, she claimed that he threatened to kill her and ripped off her clothes. 

“I grabbed my gun from under my pillow, I turned around, I told him, ‘Stop,’” Julie told the courtroom. “I said, ‘Stay back,’ felt my hand jerk and heard a loud noise. And he was still coming forward at me, and then all of a sudden he froze completely.” 

Prosecutors, however, pointed to Jason’s autopsy, noting the gunshot wound was in the side of his back, indicating he was struck while he was turned away from Julie. 

Though the jury declared a mistrial and Julie was acquitted, she was on trial again in 2015.

This time, prosecutors pointed to sections of Julie’s diary—submitted as evidence—in which she wrote about wanting to have sex with her husband. Meanwhile, Jason’s search history showed he was researching divorce resources. 

Ultimately, Julie was convicted of second-degree murder and using a firearm in the commission of that murder. In 2016, she was sentenced to 40 years to life in prison.

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