Investigators to update timeline of Thousand Oaks mass shooting

Investigators today plan to release a more detailed timeline of a mass shooting at a Southern California bar that killed 12 people in the first news conference since the week of the Nov. 7 attack.

Investigators haven't said what they believe motivated 28-year-old Ian Long to open fire at the Borderline Bar and Grill in Thousand Oaks. Long, who killed himself, posted on social media about whether people would think he was insane.

Ventura County sheriff's Capt. Garo Kuredjian says investigators have interviewed hundreds of witnesses, gathered bullet casings, surveillance video, and other evidence from the scene of the shooting, as well as seized items from Long's home, including electronic devices.

Detectives hope evidence taken from the house helps them learn why Long carried out the attack, and that evidence from the bar better explains how he carried it out.

Long, a former machine gunner and Afghanistan war veteran, attacked the Borderline Bar on a busy weekday night, firing into the crowd as some hurled barstools through windows to escape. Those killed included sheriff's Sgt. Ron Helus, one of the first officers to arrive in response to 911 calls.