Police arrested a Florida father on Monday for allegedly bringing a loaded AK-47 to his son’s middle school and making death threats towards teachers.

Christopher Freeman, 27, was arrested at Bear Lakes Middle School in West Palm Beach, Florida, around 4 p.m. after a school resource officer told police that he saw a large handgun sticking out of Freeman’s pants, according to a police report.

The school was placed on lockdown after the incident.

Freeman, who arrived in a wheelchair, allegedly told school workers that they would all be dead if they didn’t let him speak with his son.

“Freeman was visibly upset and was yelling and screaming ‘you’re going to need more than what you got because of what I got,'” according to the arrest affidavit. “He also said ‘I want to see the guy who slammed my son. I’ve got something for him.'”