THOUSAND OAKS, Calif. (AP) — A hooded gunman wearing all black opened fire at a country dance bar holding a weekly “college night” in Southern California, using a handgun and a smoke device to kill 12 people and sending hundreds fleeing, authorities said Thursday. Terrified revelers used barstools to break second-floor windows and jump to safety to escape the dance bar, where the gunman was later found dead. Those killed in the shooting Wednesday night also included 11 people inside the bar and a sheriff’s sergeant who was the first officer inside the door, Ventura County Sheriff Geoff Dean said.