Troubled ex-Marine was known to authorities
Before authorities said he opened fire at a Thousand Oaks bar, killing 12 people Wednesday night, Ian David Long was known among his neighbors in Newbury Park as a troubled ex-Marine who appeared to have serious mental health problems.
Dressed in black, Long, 28, made the five-mile drive from his home to the Borderline Bar and Grill, where he tossed smoke bombs and rained bullets on a crowd of 150 to 200 people, law enforcement officials said.
Authorities said Long carried out the attack armed with a Glock 21 .45-caliber handgun, which he purchased legally in Simi Valley, but had apparently modified with an extended magazine.
Ventura County Sheriff Geoff Dean said Long was found dead of an apparent gunshot wound in an office inside the bar. Authorities suspect he killed himself after carrying out the attack. Dean said officials discussed whether the gunman suffered from post-traumatic stress disorder, or PTSD.
Dean said his department had had several interactions with Long, including a visit to his home in April for a complaint of disturbing the peace. Deputies at the time said Long was irate and acting irrationally, Dean said. They called in mental health professionals to evaluate him, and they concluded he did not need to be taken into custody. Long was the victim of a battery at a different Thousand Oaks bar in January 2015, Dean said.
Neighbor Richard Berge, 77, said Long was known to kick holes in the walls of the ranch-style house on Fowler Avenue where he lived with his mother.
“She’s a very sweet woman, but she had a lot of problems with the son,” Berge said. “I just know he tore the house up.”
On Thursday morning, a green light in a decorative fixture next to the garage of the three-bedroom home illuminated the driveway as authorities huddled outside. The light is commonly used to honor military veterans.
According to the U.S. Marines, Long served between 2008 and 2013 and was a machine gunner. He was stationed in Afghanistan from 2010 to 2011.
He received standard military honors including the Navy Unit Commendation, the Navy Meritorious Unit Commendation, Combat Action Ribbon and Marine Corps Good Conduct Medal. In 2011, he attained the rank of corporal.
After leaving the military, Long enrolled in 2013 at Cal State Northridge, where he studied athletic training. He left school in 2016 without graduating, according to the university.
Blake Winnett, a set builder from Simi Valley, said he lived with Long for about two years after they met in 2013. They roomed together in Simi Valley and later in Reseda while Long attended college.
Winnett recalled his former roommate as quiet – almost reclusive, keeping to himself and adhering to routines.
Ventura County Sheriff’s deputies stand outside the house of shooting suspect David Ian Long in Newbury Park, Calif., on Thursday.