12 killed in shooting at California bar packed with college students

Shooting reported at California bar

Shooting reported at California bar

Authorities believe Ian David Long eventually turned the gun on himself, but not before the 28-year-old, dressed in all black, terrorized a crowd filled with college students at Borderline Bar & Grill in Thousand Oaks, Calif.

Thirteen people died, including a sheriff's deputy and the suspected shooter. It was holding its weekly country music and dance night at the time of the shooting.

The killer was identified as Ian David Long, a 28-year-old former United States marine with mental health issues, with investigators trying to find the motive for the attack at a venue hosting a country music evening for students.

The gunman was found dead. The firearm had been outfitted with an extended magazine to hold more bullets than a typical handgun. The device is illegal in California.

There was no known motive for the shooting, Dean said.

The shooting at Borderline marks the 307th mass shooting in the US this year, according to the Gun Violence Archive's records.

It also marks the deadliest mass shooting in the country since 17 people were killed earlier this year at a high school in Parkland, Florida.

Nineteen-year-old Cole Knapp was inside Borderline at the time of the shooting.

Helus was on the phone with his wife Karen when he got the call that there was a shooting.

He was one of the first law enforcement officials to respond - and called his wife just before walking into the bar where he was shot dead.

"There were people hiding in restrooms, people hiding in attics", Dean said. He was shot inside and later died at a hospital.

"It's something that I wish I was OK to do, but unfortunately I can't, so that's why I'm making sure that he gets remembered", King said. "It could have been much, much worse", he said. Dean told reporters that there was no indication the suspect was targeting bar employees. Neighbor Tom Hanson had called the police with concerns about Long's behavior.

"We will be sure to paint a picture of the state of mind of the subject and do our best to identify a motivation", Delacourt said, adding that the FBI would investigate any possible "radicalization" or links to militant groups.

Long had been cleared by mental health experts after an incident in his home in April, sheriffs revealed on Thursday morning.

Long had no criminal record.

An American flag hung on the garage at Long's home on Thursday as law enforcement gathered outside.

Mourners outside a reception centre for families of victims.

The top Democrat on the House Judiciary Committee, Jerry Nadler of NY, said lawmakers would start crafting a gun-control bill when the House convenes with a Democratic majority in early January.

"I want gun control". He wrote on Twitter, "We must find a way to stop the senseless and many times preventable killings that are robbing our country of innocent lives".

"This is a very close-knit community", Kuredjian said, adding that Thousand Oaks - north and west of Los Angeles - is a "pro-law-enforcement community" as well. "You just don't expect it to happen in Thousand Oaks".

"I was actually about to leave when you start hearing pop, pop, pop".