Man Apprehended With Preparations in His Car for Mass Stabbing and Shooting Sprees

( — South Florida law enforcement said they arrested a 19-year-old last week for making written threats in connection to a series of handwritten notes found in his vehicle during a traffic stop last month, CNN reported.

On September 18, Henry Horton IV was pulled over by a police officer in Jupiter, Florida, for a broken headlight. During a search of the white pickup truck, the officer found several handwritten notes outlining Horton’s plans to purchase a firearm and “kill everyone” at Okeechobee High School.

Horton, a 2022 graduate of the school, told the officer that he had a history of mental health issues and was having “multiple thoughts” about committing a “mass homicide” and wanting to act on them once he turned 22, according to the Palm Beach County Sheriff’s Office.

Horton admitted that he planned to kill fifteen people at the high school on his 22nd birthday, January 2, 2026.

He told the police that he voluntarily entered a medical facility for a mental health evaluation while living in Virginia when he was having similar thoughts of mass homicide.

When asked where he was headed when he was pulled over, Horton said he was driving to Miami to look at a church where he planned to kill about ten people once he carried out his January 2, 2026 mass murder.

Horton also told police that he visited Marjory Stoneman Douglas High School, the site of the 2017 school shooting in Parkland, Florida.

Police transported Horton to a hospital to undergo a mental health evaluation under Florida’s Baker Act, which allows authorities to involuntarily detain an individual for up to 72 hours during a mental health episode.

Horton was arrested last Thursday and charged with intimidation with written threats to harm or kill another person. He is being held in the Palm Beach County Jail on a $1 million bond. His next court appearance is scheduled for November 6.

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