No fatalities have been reported and the Ventura County Star said that at least four ambulances were at the scene to treat the victims.
"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.
Long was in the Marine Corps from 2008 to 2013 and served as a machine gunner in Afghanistan.
Court records show Long was married as a 19-year-old in Honolulu in June 2009, and he and his wife separated in June 2011 while he was deployed to Afghanistan.
Ms Teylor Whittler managed to escape the carnage unhurt. "So he knew what he was doing, and he also had flawless form".
The shooter, Marine Corps veteran Ian David Long, 28, apparently killed himself after gunning down customers in the Borderline Bar and Grill.
Authorities so far had no indication of a motive, or of any connection to terrorism. "Sister Sister" actress Tamera Mowry-Housley and her husband, former Fox News correspondent Adam Housley, said earlier they were looking for her. Alaina is their niece.
Between eight and 15 people suffered minor injuries and one person was a gunshot wound, Dean said at the news conference.
Dean says the report of the shooting came as Helus was on the phone with his wife.
'I ran out the front door... Don MacLeod said he did not call police but avoided speaking with Ian Long.
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"We didn't take it seriously at first. because it sounded like firecrackers and everyone just dropped down to the floor". Earlier he had described it as "a horrific scene in there".
Long also had been a victim of battery at a different Thousand Oaks bar in January 2015, the sheriff said.
Officers went to Long's home in Newbury Park, about 4 miles (6 km) from the bar, in April to answer a disturbance call and found him agitated, Dean told reporters. "I love you. I'll talk to you later, '" Dean said.
Police said Long used a.45-caliber Glock handgun with an illegal, extra-capacity magazine, first shooting a security guard outside the bar.
"It was just semi-automatic, as many shots as he could pull, and then when it started to reload that's when we got people out of there".
Jason Coffman wept as he told reporters that his son, Cody, 22, was among the dead.
Tait said she also saw people break windows with bar stools and jump out.
Telemachus Orfanos survived the deadliest shooting in modern American history.
Kelly has a large tattoo on his left arm memorializing the Las Vegas shooting, which killed 58 people.
Mr Trump praised police for their "great bravery" in the California attack and said: "God bless all of the victims and families of the victims".
Trump ordered the United States flag at the White House and other government buildings to be flown at half-staff.
People run from the Route 91 Harvest country music festival after gun fire was heard, October 1, 2017 in Las Vegas.