It's perfectly ok to surrender, noamatter how much damage you've done. Hell, blow up half the Earth and kill 2-3 billion. Just don't forget to give yourself up. You get the live and plead insanity.
But boy, steal some cigars, and .....
Oh, wait. Micheal Brown did throw his hands up. Still dead.
Oh, but he was black, though, so throwing the hands up doesn't count.
A white cat can kill someone, still have the weapon, and not get killed.
Funny how that works.