The man alleged to have shot dead 17 people in the Parkland Florida school massacre had heard demons ordering him to "burn, kill, destroy," police transcripts released on Monday showed.

Nikolas Cruz, 19, was detained without resistance shortly after the February 14 attack in Parkland, north of Miami, and was questioned in the Broward County Sheriff's Office. According to the transcript of the interrogation, detective John Curcio offered him a glass of water. "I do not deserve it," Cruz remarked. When the officer briefly left the room to look for water anyway, Cruz said to himself: "Kill me, just kill me."