[okay time to do this May TIME TO PROVE YOU'RE NOT DISPENSABLE EVEN WHEN THERE IS NO SCIENCE TO BE DONE]

Um...perhaps this is a foolish idea, but are we sure Dave had been the intended victim in this case? His card says he is a ninja, correct? I do not know if this is true everywhere, but where I come from, a katana is typically the sword that a ninja would use. So in that case...maybe he was the one who chose to kill one of the deadweights and failed?