Not to mention that;
a) a self inflicted head shot is not usually from an arms length away. 99% of the time the muzzle is touching the person’s head at the time of firing. Someone with any type of smart left in them will realize that when going over the ME’s report.
b.) to pull off a head shot while handcuffed from behind…and hitting yourself in the head…well, that would be tricky. Even with a thumb pull it would be hard to do.
The victim’s family must be going crazy with that type of BS response to their inquiry.