If Osama Bin Laden walked into your living room today and decided to torture and decapitate you, would that be wrong?
No, because I really wish he'd give it his best shot.
If you're asking in general regarding the moral code. It is wrong to violate someone's life and sovereignty of will. As I said, that moral statement protects the essence of man. No one is justified to take another's life, or violate their right to sovereignty of will w/o just cause as in sanction, or to protect the rights of others against imminent violation.