that the absence of blood on hennis' members only jacket was evidence of guilt. >> they kept saying that there was no blood because he took the jacket to the dry cleaners. >> the jacket was a damning piece of evidence. >> and richardson also undercut pat cohen who had i.d.'d him leaving the eastburn home. and he videotaped him in a tour of the crime scene. >> when you start to listen to his story, he is all over the place. >> and i brought my girlfriend some roses. >> you brought her some roses on sunday. >> no, it was candy. no, it was roses. >> we kept asking, are you sure about that? >> and he said, well, you are right, now that i am out here, i probably didn't see that. no, no, no i can't see that. >> but on the witness stand, cone cast aside doubt. >> he said that the lawyers have been tricking me and pressuring me, and i picked out the right guy. >> finally, prosecutors presented a surprise witness. a woman who said that two days