The guy was on meds. More likely that he would OD than shoot himself. Someone was trying to say something via the method that his life was taken. I just can't see suicide as fitting quite right to what we know right now.
I had that thought as to the method used as well.
Perhaps the family knows more too, so they are just going along with the (?) obvious suicide.
A very barbaric way to choose to go, in my humble opinion....
(Emphasis on CHOOSE)
Yep. "He was befuddled and accidentally OD'd." A much nicer explanation for the family to live with (even if in a corner of their mind they know it wasn't an accident).