David Harris is wrong: The perp was not convicted of felonies in those cases.
https://www.yahoo.com/news/minister-texas-gunman-grew-angry-153033552.html
In 2012, a district judge in Oklahoma ruled him mentally incompetent to stand trial and ordered him committed to a psychiatric facility for treatment.
Kinnunen was charged with felony assault and battery with a dangerous weapon after he attacked the owner of a Chickasha, Oklahoma, doughnut shop in 2011, court records state. He was separately charged with arson that year after allegedly starting a fire in a cotton field by tying tampons soaked in lamp oil to the crop.
Earlier on the day of that fire, Kinnunen soaked a football in the accelerant, lit it on fire and threw it back and forth with his son, who was a minor, according to the arrest affidavit. The boy told police he was afraid his father would get mad if he asked to stop.
A forensic psychologist who examined Kinnunen in 2012 for both cases wrote that “Kinnunen currently evidences signs that are consistent with a substantial mental illness and that meet the inpatient criteria of a ‘person requiring treatment.’”
Records show that Kinnunen was found competent to stand trial in February 2013. However, both criminal cases were ultimately reduced to misdemeanors, to which he pleaded guilty.
https://www.yahoo.com/news/minister-texas-gunman-grew-angry-153033552.html