THOUSAND OAKS, Calif. — The gunman who killed 12 people at a country music bar in a Los Angeles suburb was a former military machine gunner who was interviewed by mental health specialists months ago after a neighbor reported a disturbance.
Ian David Long, 28, apparently killed himself after the Wednesday attack. He had joined the Marines and gotten married young. Within several years, he left the military and divorced. Later, he enrolled at a university and most recently lived with his mother in a home where neighbors said they could hear aggressive arguments.