The gunman who killed his sister and eight other people in Dayton, Ohio, before he was slain by police had a history of violent obsessions and previously mused about committing mass murder, an FBI official said on Tuesday.
FBI agent Todd Wickerham told a news conference two days after the massacre in the streets of Dayton’s historic downtown Oregon District that investigators have yet to conclude what motivated the killer or whether he may have had an accomplice.
Police said in the initial aftermath of Sunday morning’s bloodshed that they believed the slain suspect, identified as 24-year-old Connor Betts, a white man from the Dayton suburb Bellbrook, had acted alone.
The gunman, who was wearing body armor and a mask, opened fire with an assault-style rifle fitted with a high-capacity ammunition drum that could hold 100 rounds, police said. Authorities said officers patrolling the area arrived on the scene and shot the gunman dead 30 seconds after the violence began.
In addition to the nine people killed, including Betts’ sister, more than two dozen others were injured in the attack, which came 13 hours after a shooting spree that claimed 22 lives in El Paso, Texas.