Is it just me or is the whole plan doomed to fail? It is building on the whole fact that the Hero admits defeat basically.
With the Heroes personality, it is more likely that he would try killing EVERYONE and make it look like the Criminal who ran away did it somehow by luring monsters in etc. Also the Hero looks clearly strong enough to do that. The whole plan only sounds smart but is utterly useless when the Hero decides to flip the table or is too egotistical to admit defeat.