Authorities have identified the suspect in a mass shooting at a Southern California bar as Ian David Long, 28.
Ventura County Sheriff Geoff Dean says Long is believed to have killed himself late Wednesday at the Borderline Bar and Grill in the city of Thousand Oaks.
The gunman was a Marine who served one combat tour in Afghanistan.
The Marine Corps says Long was deployed to Afghanistan for seven months, from Nov. 16, 2010, to June 14, 2011.
He was in the Marines from August 2008 until March 2013, serving as a machine gunner and earning the rank of corporal in August 2011.
“The Marine Corps extends its deepest condolences to the families of the
victims in this senseless tragedy.”
The Marine Corps says Long earned several awards, including a Combat Action Ribbon and a Marine Corps Good Conduct Medal.
He was assigned to the 2nd Battalion, 3rd Marine Regiment, Third Marine Division in Kaneohe Bay, Hawaii.
Officials say police had several previous contacts with the former Marine including a call to his home in April, when deputies found him acting irate and irrationally.
Ventura County sheriffs say a mental health crisis team was called at that time and concluded that Long did not need to be taken into custody.
The other prior encounters were a traffic crash and an incident when Long was the victim of a battery at a bar.
Long was found dead in the Borderline Bar and Grill after 12 people were shot to death late Wednesday.