Thousand Oaks bar shooting: What we know about Ian David Long, California shooting

THOUSAND OAKS, CA - Officials are working to identify a motive after a former Marine opened fire at a crowded southern California bar late Wednesday, killing 12 people.


Here is what we know about the deadly attack:

--Suspected gunman identified as 28-year-old Ian David Long, a Marine veteran

--Long used a .45-caliber handgun designed to hold 10 rounds plus one in the chamber, but had an extended magazine that is illegal in California

--12 people were killed, including sheriff's Sgt. Ron Helus. Long was also found dead inside the club

--11 other victims have not yet been identified

--At least 10 others were injured in the attack

--Long used a smoke bomb as he entered the bar, sending victims fleeing in panic

--Shooting began around 11:20 p.m. local time Wednesday night

--The Borderline Bar and Grill  was holding its regular "College Country Nights" when the attack took place

--A motive in the attack is unclear

--Deputies responded to a call at Long's home in April, where they found him "acting irrationally" due to what may have been PTSD

--Shootings of any kind are "extremely rare" in Thousand Oaks, which has been deemed one of the nation's safest cities

--Deadliest mass shooting in the U.S. since 17 students and teachers were killed at a Parkland, Florida, high school in February

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