and there, on the walgreens video, detective arnold saw it, the man coming in with james quisenberry,o figure out. rick circulated a freeze frame of the man and hoped someone could identify him. then, he waited. eight months later, rick got some promising news, a detective thought he recognized the walgreens guy from another shooting. >> i might want to check him out. >> his name kenneth williams. rick compared several williams mugshot with the walgreens video. you think, boom, we have our guy? >> i think it's him but the pictures and videos are not real good. but i focus in on him at this point. >> brics investigation got lucky again, and unlikely witness came forward with information about that same kenneth williams and the night erica and her mom were shot. but the witness was questionable, he was charged with murder himself for which he later pleaded guilty to manslaughter and he was also gravely wounded in a shooting. prosecutor john heck. >> he's on his deathbed, he thinks he is going to hell and he has something that he needs to say. >> weeks later turner's health improved enou