8:35 AM PT -- Long served in the U.S. Marine Corps from 2008-13 and was deployed to Afghanistan from 2010-2011, his last duty assignment was in Hawaii. His military occupational specialty was machine gunner.
7:40 AM PT -- President Trump has ordered flags flown at half-staff on all public buildings and military facilities until sundown on Saturday.
6:45 AM PT -- The shooter's been identified as 28-year-old Ian David Long -- a retired Marine who served in Afghanistan.
We found this pic of Long at a cemetery that appears to be in the L.A./Thousand Oaks area. We're told he was heavily tattooed.
A horrific scene unfolded at a bar packed with college students Wednesday night as a gunman opened fire, and at least 12 people are dead.
Borderline Bar & Grill in Thousand Oaks was hosting its weekly College Country Night. College students from the area were enjoying themselves, line dancing when, at around 11:20 PM, shots rang out.
A man dressed in all black began firing a handgun. Several patrons broke windows to allow others to escape, cutting themselves on shards of glass as they exited.
Sheriff's deputies responded quickly and as they rushed the bar the gunman opened fire on them, killing Sergeant Ron Helus.
No word yet on the number of injured, but around a dozen people are known to have gone to the hospital. It appears some may have driven themselves and may not be accounted for yet.
President Trump tweeted, "Great bravery shown by police ... God bless all of the victims and families of the victims. Thank you law enforcement."
Story developing ...
Originally Published -- 6:03 AM PST