Depends. Did he kill the only pilots? How armed is he? Based off the airport security nowadays, he MOST LIKELY isn't going to be armed enough to hold off a majority of passengers on the plane. If someone hijacks a plane in today's world, they better be friggin well prepared. Unless they killed the air marshal(s) and both pilots (now allowed by law to train with and carry weapons), I will do everything in my power to make the SOB bleed, stick my thumb into his eye socket and beat him with whatever is in reach. Think about the possibilities, yes. He may have killed an air marshal and taken his weapon. He may have killed a pilot and taken his weapon. He may have BEEN one of the pilots who has trained for years to become a pilot/air marshal, just to hijack it and kill everyone for god knows what reason. There are plenty of scenarios you have to think about, but in the long run would you rather have a situation like the towers, or flight 93 where the passengers decided to revolt against the hijackers and prevent even more destruction? I know personally that I would risk my life and the lives of everyone else on board a single airplane to potentially save the lives of hundreds and possibly thousands of other lives, and I'm sure MOST LIKELY a MAJORITY of the other passengers on the flight would have the same frame of mind.