Florida man detained after discovering papers that contained plans to “kill everyone” at his former school

Police in South Florida detained a 19-year-old guy after finding scrawled threats in his car, in which he promised to “kill everyone” at his previous school on his 22nd birthday. He had also indicated a desire to murder individuals in several states.

Florida man found with notes detailing plans to 'kill everyone' at former  school

On September 27, due to a broken headlight, police in Jupiter captured Henry Horton IV. At this point, they examined his car and discovered information regarding his purported plans. According to a probable cause affidavit, they discovered a message that said, “kill everyone at OHS with my guns,” in reference to Okeechobee High School, from which he graduated in May 2022. He reportedly confessed.

Henry, along with 14 other people on the campus on January 2, 2026, was allegedly planning to murder a school administrator. Police then looked into his phone and Discord account, where they discovered that he had reportedly intended to carry out other mass killings across states, construct a bomb, and assassinate his stepmother.

According to the New York Post, Henry admitted in an interview with the Palm Beach County Sheriff’s Office that he had come to Palm Beach County to conduct surveillance on the El Rey Jesus Church in Miami as part of the attack he was planned.

Henry also asserted that he conducted reconnaissance at the Marjory Stoneman Douglas High School, where shooter Nikolas Cruz murdered 17 people there in 2018. A 9MM handgun that Henry is claimed to have stolen from his mother was also confiscated by police.

He should be handled as a person with a mental illness rather than as a criminal,
In accordance with Florida’s Baker Act, Henry, who has struggled with mental health issues, was admitted to a hospital. Currently, he is in custody.

Although Henry’s mother Marcie Horton did not defend her son, she pleaded with the authorities to let him get the treatment so he wouldn’t have to go to jail. She added that he was a “good kid” and wouldn’t have committed the crime in the real world, according to WPF. She remarked, “It’s not an excuse for what he wrote. “I’m not saying he needs help, but he does,”

Alisha Horton, Henry’s stepmother, also insisted he wasn’t guilty. She assured him, “Henry won’t harm me.” “He’d never… Rather of being handled like a criminal, he needs to receive mental health treatment.

Henry was arrested and lodged in the Palm Beach County Jail after being accused of intimidating another person with written threats to hurt or murder them. On November 6, he is scheduled to appear in court after being released on a $1 million bond.

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