what they do is they show zimmerman underdoing lengthy police questioning. in fact, in one tape, zimmerman even walks police through the scene and reenacts the shooting for them. this all adds up to the most detailed account yet of zimmerman's side of the story. >> when i got to right about here, he yelled from behind me, to the side of me. he said, "yo, you got a problem?" >> i said, hey, man, i don't have a problem. and he says, now you have a problem, and he punched me in the nose. at that point, i fell down. he ended up on top of me, and he just kept punching my face and my head. and i was screaming for help. he put his hand on his nose -- on my nose, and the other hand on my howamouth, and he said "s the [ bleep ] up." i didn't know what he was hitting -- it felt like he was hitting me with bricks. it felt like my head was going to explode. he said, "you're going to die tonight, mother [ bleep ]." he says, "you're going to die tonight." "you're going to die tonight, mother [ bleep ]." i felt his hand going down my side. and i grabbed my firearm. i grabb