NASHVILLE, Tenn. (AP) — A Tennessee man suspected of killing his girlfriend has been killed in a standoff with police. Thirty-five-year-old Matthew Luther McGinnis died Thursday night at the same Antioch home where he's accused of fatally shooting 39-year-old Nicole Lee Stephens on Sunday before hiding her body. News outlets report Metro Nashville SWAT officers who confronted McGinnis say he shot himself in the head nearly simultaneously to an officer firing.