How did twenty one pilots get their band name?

Twenty One Pilots got their band name from a true event. I don't recall what this event is called but it had to do with a scam. Tyler played in a play where a man had to make a very difficult decision. He had to chose between keeping him and his family safe, but twenty one pilots were killed or the pilots were safe but he and his family would lose all their belongings. I hope I answered your question.