hydrocodone is Vicodin? Wow. His death may be labeled accidental, but it sure sounds like he had a death wish with a laundry list this long in this prescription drug category combined with the little self care overall that is documented. It is not as though he has never heard before, in this day and age, not to mix drugs, even non- prescription.
Prayers for the family. They are victims of drug addiction. There is no doctor to blame for this.
I have some pretty close personal experience with someone who's been prescribed multiple meds, including much of this list. Sometimes it's not so much a death wish as a desire to be "numb", regardless of the risk. There can even be a "daredevil" aspect to it...."how close can I go and come back".
-Eric