Man Pleads Guilty in Mac Miller Death The man accused of causing the death of Mac Miller is expected to plead guilty. Ryan Michael Reavis will confess to one count of the distribution of fentanyl. Stephen Walter, the other co-defendant, plead guilty to the same charge last month. Mac’s assistant found him unresponsive in his home on September 7, 2018. Hours later Mac Miller was declared dead. Where were you when you found out Mac Miller had died? What should be the sentence for these guys?