A gunman opened fire overnight in a Southern California bar. The Ventura County sheriff said the bar was crowded with more than 100 people.
The shooting took place at the Borderline Bar & Grill in Thousand Oaks. Authorities don't yet have a motive for the shooting.
The gunman, identified by law enforcement as Ian David Long, 28, killed 12 people, including a sheriff's sergeant who responded to the incident. Law enforcement believe the shooter took his own life.
Ventura County Sheriff's Sgt. Ron Helus, was killed while responding to the shooting, he was on the phone with his wife when he was dispatched to the Borderline Bar & Grill, Sheriff Geoff Dean told reporters. Helus would call his wife several times during his shift, Dean said.
"'Hey, I gotta go handle a call, I love you, I'll talk to you later,'" Dean said Helus told his wife. Earlier on "CBS This Morning," Dean said.
Dean said that investigators do not know the motive for the shooting. The shooter shot a security guard outside the bar and continued shooting once he entered the club.