Given that the crime was committed on US soil, but that none of the participants were American, I don't know who has jurisdiction, and for what...
Is there a lawyer in the house?
Sometimes Americans are not tried in foreign courts, and sometimes they are, what the distinction is, who knows?
As for me, I say light 'em sparky. I am not fundamentally opposed to the death penalty. Just so long as there is ample evidence, proper legal proceedings, etc, and the people being executed are not being killed for political purposes (like voicing an opinion or something)... stuff like that...
It sounds like AZPD is pretty convinced.
I doubt it, and I am sure they will even charge the family for the bullet.