Tom Petty Autopsy is Finally out and He Died of Fentanyl Addiction! Wait What?

http://www.cnn.com/2018/01/19/health/tom-petty-cause-of-death/index.html
 https://www.theguardian.com/music/2018/jan/20/tom-petty-died-from-of-accidental-drug-overdose-family-says
 https://www.rollingstone.com/music/news/tom-pettys-cause-of-death-accidental-overdose-w515472