JustGuysBeingDudes

I would imagine the blanket statute to refer to is something like reckless endangerment, or perhaps more likely would be the firearms themselves being unlicensed.

Additionally, if I shot at someone who was wearing a bulletproof vest, it still would be attempted murder. If they asked me to shoot at them, it still would continue to be attempted murder ("no judge, they asked me to shoot them and I missed").

I mean, even if someone explicitly asked for you to kill them, in writing, notarized, and all that legal jazz, then you're getting into the realm of assisted suicide and that lovely grey area of morality. Though I believe it's still illegal throughout the US.