You’ve probably seen the name floating around TikTok or Netflix. Big Ed serial killer. It’s a nickname that gets thrown around a lot in true crime circles, but if you’re looking for a guy actually named "Big Ed" who went on a spree, you’re likely thinking of Edmund Kemper. People get him mixed up with Big Ed from 90 Day Fiancé because of the name, which is a weird internet crossover, but the reality of Kemper is infinitely more terrifying than a reality TV meme.
Kemper wasn't just some random guy. He was a 6-foot-9, 300-pound giant with an IQ of 145. That’s "certified genius" territory. He used that height and that brain to manipulate people, police, and even psychiatrists for years. When we talk about the "Big Ed" serial killer, we’re talking about the Co-ed Killer of Santa Cruz. He’s the man who turned the hippie-haven of 1970s California into a landscape of pure paranoia.
It's a dark story. Honestly, it’s one of those cases where the more you learn, the less the "genius" label matters because the brutality is so overwhelming.
Why Everyone is Obsessed with the Big Ed Serial Killer Name
The nickname "Big Ed" is a bit of a modern invention by the internet. Back in the 70s, the press called him the Co-ed Killer. He targeted young women, mostly hitchhikers, around the University of California, Santa Cruz. He was huge. Imagine standing 6’9” and weighing 300 pounds. That’s an NFL lineman’s frame. He used his size to intimidate, but more often, he used his surprisingly soft-spoken demeanor to put victims at ease.
He looked like a friendly giant. He wore glasses. He was polite. He hung out at a bar called the jury room, where he actually befriended local police officers. They liked him. They called him "Big Ed" as a term of endearment. They’d drink beers with a man who, at that very moment, had human remains in the trunk of his car or buried in his mother's garden.
That’s the chilling part. The "Big Ed" serial killer wasn't hiding in a sewer. He was hiding in plain sight at the local cop bar.
The Childhood That Broke Him
Most people want to know why. What makes a kid grow up to be a monster? With Kemper, the answer usually starts with his mother, Clarnell Strandberg. By all accounts—including Kemper's own—she was abusive, belittling, and lived to make him feel small despite his massive size. She forced him to sleep in a dark basement because she was afraid he would harm his sisters.
He did harm things, though. Early on.
When he was 15, he shot both of his paternal grandparents. Just to see what it felt like, or so the story goes. He was sent to Atascadero State Hospital, a high-security facility for the criminally insane. Here’s where the "genius" part comes in. He didn't just sit in a cell. He studied the psychiatrists. He memorized the tests. He figured out exactly what "sane" looked like and mirrored it back to them. By the time he was 21, he convinced the state he was fully rehabilitated. They released him. They even buried his juvenile record.
He was a clean slate. A 300-pound clean slate with a grudge against his mother.
The Santa Cruz Killing Spree
Once he was out, the killings didn't start immediately. He tried to live a "normal" life. He worked for the State Division of Highways. But the tension with Clarnell was a pressure cooker. Between May 1972 and April 1973, Kemper went on a rampage.
He would pick up hitchhikers. In the early 70s, hitchhiking was the primary mode of transport for students in Santa Cruz. It was the era of free love and "trust everyone." Kemper exploited that trust perfectly.
- Mary Ann Pesce and Anita Luchessa: Two 18-year-old students who were his first victims after his release.
- Aiko Koo: A 15-year-old dancer.
- Cindy Schall: A college student whose remains he notoriously dealt with in his mother's yard.
The details are gruesome. I'm not going to sugarcoat it: Kemper was a necrophiliac. He didn't just kill; he sought total possession of his victims. He would bring them back to his mother’s house when she wasn't there. It was a cycle of rage against the feminine, fueled by his relationship with Clarnell.
The End of the Road for the Co-ed Killer
The spree ended in the most horrific way possible. On Good Friday in 1973, Kemper finally did what he’d been wanting to do for years. He killed his mother while she slept. Then, he killed her best friend, Sally Hallett, who had come over for dinner.
After that, the "Big Ed" serial killer just... stopped.
He didn't get caught. He didn't slip up. He drove to Colorado, realized nobody was coming for him, and called the Santa Cruz police from a phone booth. At first, the cops thought it was a prank. This was "Big Ed" from the bar! He couldn't be a killer. He had to convince them he was the guy they were looking for.
The Mindhunter Connection
If you’ve seen the show Mindhunter on Netflix, you know why Kemper is famous today. Cameron Britton’s portrayal of him is hauntingly accurate. The real Kemper was instrumental in helping the FBI’s Behavioral Science Unit.
He sat down with agents John Douglas and Robert Ressler. He was articulate. He explained the "organized" vs. "disorganized" killer logic. He gave them the blueprint for how a serial killer thinks. He described the "cooling off" period. He explained the ritualistic nature of his crimes.
Most serial killers lie. They minimize. Kemper was different; he was terrifyingly honest. He wanted the world to know how smart he was. He wanted credit for the complexity of his depravity.
Why he isn't like the others
Most killers have a low IQ or come from total social isolation. Kemper had a social life. He had a job. He was a regular at the bar. This "dual life" is what makes the Big Ed serial killer narrative so persistent in criminology. He proved that a monster could be the guy buying you a round of drinks.
He’s still alive, by the way. He’s in the California Medical Facility in Vacaville. He’s in his late 70s now. He reportedly spends his time narrating audiobooks for the blind. It’s a bizarre, poetic twist—a man who committed such visceral, physical horrors now exists only as a voice in the dark for people who can't see him.
Common Misconceptions About the "Big Ed" Serial Killer
Let’s clear some things up.
- Is he Big Ed from the TV show? No. That’s Edward Brown. Completely different person, though the internet loves to meme them together because of the name.
- Did he kill his father? No. His father, Edmund Sr., was a war veteran who left the family when Kemper was young. Kemper actually tried to bond with him later in life, but it didn't take.
- Was he the inspiration for Buffalo Bill? Partially. Thomas Harris used elements of Kemper (his size and the way he talked to victims) along with Ed Gein and Ted Bundy to create the character in Silence of the Lambs.
What We Can Learn from the Kemper Case
The Kemper story isn't just a "spooky" tale for a campfire. It’s a massive lesson in the failures of the criminal justice and mental health systems.
- The "Rehabilitation" Myth: The biggest takeaway is how easily Kemper manipulated the system at Atascadero. It shows that psychological tests are only as good as the person taking them is honest.
- The Warning Signs: He showed the "MacDonald Triad" (animal cruelty, fire-setting, bed-wetting) early on. Today, we recognize these as massive red flags. In the 50s and 60s, they were often dismissed as "boys being boys" or simple behavioral issues.
- Victim Advocacy: This case changed how hitchhiking was viewed. It killed the "stranger trust" of the 60s.
Actionable Next Steps for True Crime Enthusiasts
If you want to understand the Big Ed serial killer case beyond the surface level, don't just watch TikToks.
Read "The Cases That Haunt Us" by John Douglas. Douglas was the actual FBI agent who interviewed Kemper. He provides the psychological breakdown of why Kemper did what he did without the sensationalism of TV.
Watch the actual 1984/1991 interviews. You can find raw footage of Kemper talking to cameras in prison. Pay attention to his body language. He’s incredibly still. He doesn't fidget. It’s that stillness that is truly haunting.
Understand the Santa Cruz context. Research the "Murders Capital of the World" era. Santa Cruz in the early 70s was also home to killers Herbert Mullin and John Linley Frazier at the exact same time. It was a bizarre convergence of violence that redefined California law enforcement.
Check the sources. If you see a quote from Kemper, verify it. He was a manipulative man who loved to "perform" for his audience. Always view his self-reflections through a lens of skepticism—he was a master at making himself the protagonist of a tragedy rather than the villain of a massacre.
The story of the Big Ed serial killer is a reminder that the most dangerous monsters don't always look like monsters. Sometimes, they look like the guy sitting next to you at the bar, laughing at your jokes, and waiting for the sun to go down.
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