Perhaps. But it wouldn't be assured. Cutting off someone's head isn't easy. You have to strike between the bones perfectly if you want a clean beheading. It's not a guarantee even if you have strength and skill.

[ But the alibi he doesn't say anything to, since the buddy system working is like such a crapshoot that he's not good at arguing it... He was the one that refused to buddy up and almost got killed for it, so. ]