10 Normal People Who Tried to Warn Us About Terrible Psychopaths

Jeanine Lauwens

Warned Us About Marc Dutroux

Marc Dutroux’s mother, Jeannine Lauwens, was among the earliest people to recognize that something was deeply wrong with her son long before he became one of Europe’s most notorious criminals. Throughout his youth and young adult life, she repeatedly described Marc as “abnormal,” manipulative, and violently unpredictable. After Dutroux was arrested for a series of kidnappings and assaults, she again warned authorities that he was highly dangerous and should never be released. However, despite these warnings, Marc Dutroux was paroled early and would go on to commit the horrific crimes that later shocked not only Belgium, but the world.

Psychiatrists

Warned Us About Edmund Kemper

Before Edmund Kemper became known for killing his grandparents, then later for the series of murders that made him infamous, he spent his teenage years in psychiatric institutions. During that period, multiple psychiatrists evaluated him extensively, documenting his violent fantasies, lack of emotional connection, manipulative tendencies, and extremely high intelligence. Some reports explicitly stated that Kemper should never be released, as he remained a serious danger to society with deeply ingrained homicidal ideation. Yet, one evaluator eventually recommended his release, while several psychiatrists voiced concerns that he was merely masking his behavior. History tragically proved them right when Kemper’s post-release crimes escalated far beyond what anyone anticipated.

Kim Rossmo

Warned Us About Robert Pickton

Kim Rossmo was Canada’s first police officer to hold a PhD in criminology, and he trailblazed the technique now known as geographic profiling. And, in the late 1990s, Rossmo warned Vancouver authorities that a serial killer was almost certainly responsible for the disappearance of dozens of women from the Downtown Eastside. His geographic analysis pointed toward a specific zone in Port Coquitlam - the exact area where Robert Pickton lived and operated his farm. Rossmo repeatedly pushed the department to treat the cases as connected and urgent, but senior leadership dismissed his warnings as overreactions. Years later, Pickton was arrested on his farm, where investigators found evidence tying him to the murders of dozens of missing women.

Campers

Warned Us About Rodney Alcala

It was at a New Hampshire arts camp in 1971 when staff members discovered that one of their new “counselors” wasn’t who he claimed to be. The quiet, long-haired man calling himself a different name was actually Rodney Alcala — a fugitive on the FBI’s Most Wanted list for a brutal assault in California. The truth came out only after a pair of sharp-eyed campers recognized his face from a wanted poster and alerted the adults. Staff immediately contacted authorities, leading to Alcala’s arrest years before the world would know him as the “Dating Game Killer.” Unfortunately, even though the campers’ concern and staff's actions got Alcala back on law enforcement’s radar, the system tragically released him.

Marko & Terezia Butkovich

Warned Us About John Wayne Gacy

Marko and Terezia Butkovich weren’t just suspicious - they were persistent. Their teenage son, John Butkovich, went missing in 1975 after a dispute with his employer, contractor John Wayne Gacy. The Butkoviches immediately suspected Gacy, as their son had gone to collect unpaid wages from him the night he disappeared. They repeatedly reported this to the police, visited Gacy’s home themselves, and returned over and over demanding answers. At the time, police treated John as a voluntary runaway and didn’t follow up with a full investigation. Years later, after Gacy’s arrest, his remains were found on Gacy’s property - proving the Butkovichs were right from the very beginning.

Sasha Reid

Warned Us About Bruce McArthur

Criminologist and academic Sasha Reid was researching missing persons and serial offender behavior when she began noticing troubling patterns in Toronto’s LGBTQ+ community. Before police publicly linked any disappearances, Reid independently compiled a list of her own. She noticed similarities in victim profiles, disappearance locations, and community reports of suspicious encounters - many pointing toward the likelihood of a serial predator operating in the area. Reid shared her concerns with members of the community. Although she wasn’t part of law enforcement, her warnings preceded the eventual investigation that uncovered Bruce McArthur, a self-employed landscaper who murdered multiple men over several years.

Kathleen Maddox

Warned Us About Charles Manson

Before Charles Manson became synonymous with cult violence and manipulation, his mother, Kathleen Maddox, had been pointing to her son’s instability for years. Although she struggled with her own instability, Kathleen Maddox acknowledged early that she couldn’t control Charles and facilitated his placement in various reform institutions, where officials repeatedly documented his antisocial behavior. Early court and parole reports from Manson’s youth echoed her fears, noting his antisocial behavior, chronic lying, and lack of attachment. But each time he was released, the warnings - both maternal and official - were overshadowed by overcrowded facilities, short sentences, and systemic failures.

Robert Woods

Warned Us About Gary Ridgway

Among the first to raise the alarm about the Green River Killer, Gary Ridgway, was Robert Woods - boyfriend of victim Marie Malvar. On April 30, 1983, Woods reported seeing Marie climb into a dark-haired man’s pickup truck. He attempted to follow the vehicle but lost sight of it and later reported her missing to police. Acting on Woods’ intel, investigators - along with Malvar’s father - traced the truck back to Gary Ridgway’s home, prompting police to question him. Ridgway denied any involvement. And, thanks to scarce evidence and a passed polygraph, suspicion against him quickly dissipated. Still, Woods’ vigilance put Ridgway in law enforcement’s sights years before DNA finally confirmed him as their man.

Liz Kloepfer

Warned us about Ted Bundy

Liz Kloepfer wasn’t just wary of Ted Bundy - she directly reported him to police multiple times. After hearing about the first wave of disappearances in Washington, Liz recognized similarities between the suspect’s description and Bundy’s behavior, habits, and even the name “Ted” reported by witnesses. She called police hotline numbers, contacted investigators directly, and even provided them with Bundy’s name, workplace, and car details. Although her tips were logged, Bundy was already on several suspect lists and investigators struggled to connect him definitively due to limited evidence. Kloepfer spent years terrified of what he might be capable of, and her fears were later justified when Bundy confessed to attempting to kill her during their relationship.

Glenda Cleveland

Warned Us About Jeffrey Dahmer

Glenda Cleveland - along with her niece and daughter, Sandra Smith and Nicole Childress - issued one of the most heartbreaking and ignored warnings in true-crime history. In 1991, Smith and Childress discovered a dazed, injured 14-year-old boy wandering outside Dahmer’s apartment. They immediately called police, insisting the boy was in danger. Glenda Cleveland followed up repeatedly, calling again after officers arrived and allowed Dahmer to take the child back inside, believing the situation was a domestic dispute between adult partners. Cleveland continued calling in the days that followed, reporting suspicious smells, screaming, and strange behavior from Dahmer’s unit. Each time, her concerns were brushed aside. Cleveland’s persistence stands as one of the clearest examples of a warning that should have stopped a killer in his tracks.

Which warning do you think was the most tragic missed opportunity? Let us know in the comments down below