...was raised by a traditional family, with a husband, wife, children
...was raised by a religious family
...was actively involved in their school and community
...was not being groomed to believe they are the wrong gender
...was an eagle scout
...grew up in an environment were guns were used and children were educated to their safe use
...was a hunter
...was not "previously known to authorities..."
Yes!
Ding ding ding ding ding.
This! The Psycho-babble industry and Big Pharma have drugged so many people with these brain altering drugs that it's a wonder there aren't more acts of violence caused by these drugs.