A passenger on board Delta Air Lines flight DL2349 on Sunday tried to open a cabin door while inflight. That almost never works out the way the passenger wants, because pressurization .
Another passenger on the Boston-bound flight reports that the man was nearly 300 pounds. Law enforcement on board tried to subdue the man after he hit the first class flight attendant, and passenger taking video joined in to help, asking other passengers to hand him a belt to tie the man up.