Toxicologist Peter Stout, CEO and president of the Houston Forensic Science Center, said the toxicology report showed low levels of anti-anxiety drugs and marijuana in Kelley's system.
Links
[1] https://www.nbcnews.com/storyline/texas-church-shooting/autopsy-confirms-sutherland-springs-church-gunman-died-suicide-n888051
[2] http://www.rethinkpot.org/tags/guns
[3] http://www.rethinkpot.org/tags/mass-killings
[4] http://www.rethinkpot.org/tags/violence