chapman will spend the next two days waiting for john lennon. >> who was mark david chapman? , 1980, mark david chapman was a very confused person. he was literally living inside of a paper back novel. salinger's "the catcher and the rye." and he was vacillating between suicide and taking a taxi back and forth to hawaii and back and forth between killing an icon. >> around 3:00 a.m. on the morning of december 8th, chapman checks back in with his wife in hawaii. then he takes out the bible from his suitcase and turns to the new testament book of john and writes the name lennon after the words the gospel according to john. around 8:00 a.m., he heads back to the dakota. >> i had some type of premonition this was the last time i would leave my hotel room. i hadn't seen him up to that point, that's what makes it interesting, i wasn't sure he was in the building. and then i left the hotel room, bought a copy of "the catcher and the rye" and i wrote underneath it signed it and wrote "this is my statement." underlining the word this, emphasis on the word this. i planned not to say any

♪♪♪ mark: several weeks later, braden chapman is again in a black hawk heading out on a raid with soldierof the afghan detainee. ♪♪♪ mark: the patrol fans out, heading towards a compound. mark: a "squirter" is the nickname for afghans assumed to be enemy combatants who are running for cover. soldier a heads for thtarget. braden: i was with his patrol again. we were moving through a village. we were coming up on the target building. i didn't see him walk out of that target building, but he was about 10 meters away from it, walking from that direction across our position. when we got to within maybe 20 to 30 meters away, and he saw us, he quickly grabbed his phone from his pocket, and he threw it. and at that stage he stopped. he put his hands up just like that, and then just stood there. as we got closer to him, the soldier then just fired and t him twice in the chest, and then shot him through the head as he walked past him. and then from there he just moved on. mark: so, he shot a man in cold blood who had his hands up. braden: correct. yeah. i was only 5 to 10 meters behind him at the t