"Police suspect alcohol was a factor, according to Lewis, who said results from toxicology tests were pending."
Also, "Max Townsend (perp) has a lengthy criminal history in Oklahoma that includes multiple convictions for driving under the influence, public intoxication, possession of drugs and stolen property, stalking and child abuse, court records show. He served time in prison on convictions for child abuse, receiving stolen property and possession of drugs, but was released in 2009, state prison records show."
Just another scumbag: 
if it was deliberate, he’s gonna get the needle.