Police arrested a New Jersey man in Washington, D.C., on Sunday who was accused of stashing over 200 “fully functional” grenades in his tent. 

Louis Geri, who appeared to be homeless, was apprehended outside St. Matthew’s Cathedral in Northwest Washington hours before an annual Red Mass ceremony marking the start of the Supreme Court’s fall term, according to authorities. Police said they discovered the destructive devices inside his tent, backpack, and pockets as they cleared the space outside the church early Sunday morning.