rob mccaffery was the one who got hit. h a friend when a single bullet seemingly out of nowhere pierced his skull. rob's mom raced to the hospital. >> he was in intensive care and -- excuse me. we went in there and he had tubes coming out of everywhere on him. i held his hand and laid my head next to him and begged for him to fight. >> reporter: who shot rob mccaffery? suspicion settled almost immediately on the four friends who had left the party after one of them got in a hassle and had gotten kicked out. ryan thompson was already under arrest for disturbing the peace. now connecticut major crimes squad detectives came for his buddies jared and dave. >> we all thought it was kind of a joke at first. >> they get us in the car. they're cracking jokes. i'm naive to this whole situation. >> reporter: jared says he started to wise up at the police station. >> they swabbed my hands and at this point -- >> reporter: unshot residue. >> yes. at this point i'm starting to wonder. this doesn't seem to be standard. >> reporter: dave