The Daily Mail UK has started putting together a profile of who Devin Patrick Kelley was in high school. Quoting from the article:
Former classmates say Devin Patrick Kelley, 26, who stormed First Baptist Church of Sutherland Springs in Texas and opened fire on Sunday, was ‘creepy’, ‘crazy’ and ‘weird’.
‘He was the first atheist I met. He went Air Force after high school, got discharged but I don’t know why.
As I said in an earlier posting before I found this article, this man was empty. He was godless, his family disowned him for his violence, and his country removed him from service because of his lack of control. He had nothing and struct out at what threatened him: people who found happiness he could find. People with a loving God and system he rejected.
I personally believe that the romanticization by ISIS and ANTIFA in the main stream media and social network made something click in him. He had to strike out. These people were his unfortunate targets. He made a cold and calculated choice. Also look at what anti-depressants he was on. Selective serotonin reuptake inhibitors (SSRI) are know to reduce self-control in extreme cases. If he was on a high enough dose or had been taking them long enough he may no longer had control of his facilities at that time.
Update 1: More details about Devin Patrick Kelley. His religion became that of a social justice warrior with possible ANTFA ties.