But neighbors reported hearing frequent loud fights between Ian David Long and his mother, one of them so extreme they called police in April, and authorities at the time anxious that the 28-year-old Afghanistan war veteran might have post-traumatic stress disorder.
In response to the Thousand Oaks mass shooting on Wednesday, Marjory Stoneman Douglas High School mass shooting survivor and pro-gun control activist David Hogg was among the many who pushed an inflated number of mass shootings that have occurred this year.
The official was briefed on the investigation but not authorized to discuss it publicly and spoke to The Associated Press on condition of anonymity. "We've removed the shooter's accounts from Facebook and Instagram".
President Donald Trump is blaming mental illness for the California bar shooting that left 13 people dead, including the shooter.
Neighbours reported hearing frequent loud rows between Long and his mother, one of them so extreme they called police in April. The mental health specialist concluded there were no grounds to have him involuntarily committed.
"And the two words I want you to write are: Gun control", she added.
Trump touted his efforts to fund PTSD among veterans but he declined to engage on questions on whether the nation needed stricter gun control laws.
Three-quarters of the city of 130,000 was under evacuation orders - and that likely included people affected by the shooting, Thousand Oaks Mayor Andy Fox said. None of those injured was hurt by gunfire.
Julie Hanson, who lives next door to Long's ranch-style home, described him as "odd" and "disrespectful" well before he left home a decade ago, got married and enlisted in the Marines, becoming a machine gunner. Fellow officers are calling him a hero. "I don't even know what to say".
About 18 months ago, Don and Effie MacLeod heard "an bad argument" and what he believes was a gunshot from the Longs' property.
Long is the gunman who was responsible for killing 12 and injuring many more when he opened fire at a bar in Thousand Oaks.
Then raising his head heavenward, Cody's Dad prayed, "O heavenly Father, just please be with him". "Sometimes we'd go there to have a drink, sit and talk, listen to music", she said.
Long made others feel uncomfortable going back to his teens. Colell, then 28, was the girls track coach and also disciplined the boys team.
Per The Los Angeles Times, Colell said that she imposed mile runs whenever one of her athletes swore, and Long always owed her miles.
"He's a tactician so I have no doubt he employed the best tactics possible", he said. "He was the one student athlete I had that I was actually scared of".
Colell never pressed official charges, and said that she was persuaded by coaches and other administrative staff to accept an apology and move on, so that she wouldn't interfere with his future with the Marine Corps.
Other administrators and coaches pressured her to accept Long's apology, telling her she was ruining his future since the incident would jeopardize his Marines application. Richard Vargas, 29, said he attended El Modena High School in Orange with Long before he transferred to school in Newbury Park. Both were closed due to a destructive wildfire in the area.