A gunman opened fire on a crowd of mostly college students and young adults dancing at a crowded country and western bar in a suburb of Los Angeles late on Wednesday night, killing 12 people including a sheriff's deputy, police said.
Ventura County Sheriff Geoff Dean named the suspect as Ian Long, aged 28. He told a news conference Long had likely shot himself and that he was a veteran who had served in the U.S. Marine Corps.
He said he appeared to have shot at random inside the club, using only a Glock .45-caliber handgun. There was no known motive, he said.