moments later, he knocked on the window and says cash only. he has to go into the food mart. tamerlan has, for some reason, the gun down in the pocket and is fiddling with the gps. and danny realizes, that's his time. >> while one brother is inside paying for the gas, the carjacking victim bolts from the suv, sprinting to the gas station across the street. >> translator: he fell. he clapszed here. he fell right here and he appealed to me. please, please call the police. there are people out there who want to kill me. people want to make sure i die. they have guns with them and they have a bomb with them. >> in his rush to escape, the carjacking victim leaves his cell phone in the stolen suv. police trace its signal to watertown, where andrew kitzenburg is hanking out in his living room, watching the hockey game.