he he keeps saying, you know, i i didn t do anything so i don t have anything to worry about. reporter: but was he in fact on your list at that point? oh, he he was, you know. he was, he put himself with michael. well, i think you know a little bit more than you re telling me. sir, i don t. i i i ve i m giving you pearls, man. i m giving you all i got. i i ve told you guys everything i know. i know that he came over. i know exactly when he left. i know i was at my house. that s all i know. reporter: for all his questions, investigator edmunds ultimately had nothing on anthony. a failed polygraph isn t evidence, and nothing connected him to the crime. but they were still looking at michael, and there was the inevitable question of motive. sure, michael was open about his drug use, but that didn t entirely explain why he would savagely beat his mom s best friend. my bookkeeper came to me and said we ve got some issues here. reporter: jurgen cowling has a
the, on my cell phone and asked me, he said, did you hear about david havin an affair with becky? and i said, there s no way. there s no way. reporter: the news about the affair didn t surface until after kay had been buried. david was still seen then as the grieving husband. if i woulda known about that affair, i don t think there woulda been as much support for david at the funeral or at the hospital. why would you cheat on someone that loved you so much and was always there for you, to be with someone or to just just to have sex basically? why? it it wasn t worth it. reporter: tamara thought back to david s behavior in those days after kay s death, including an odd exchange between them at the memorial service. david went up to me. and again, being very close with kay, he hugs me. and he hugs me really, really tight. and he s boohoo cryin and he tells me, i m sorry.
reporter: even after a three hour grilling gan306 michael bowers video intv i will burn you. i am telling you. reporter: michael never cracked. edmunds had to face the fact that michael was in all likelihood telling the truth. by then, they d come to believe his albi was solid. and they d figured out that the glass from the crime scene that had so suspiciously turned up on michael shoes, could be easily explained. michael had gone to look at the smashed in back door with the contractor just before police arrived. did you have anything to do with that day? if i did, i wouldn t be sitting here. did your mother ever ask you to kill kay? absolutely not. absolutely not. only thing she s ever done is just like anybody else, you know? riding in the road, somebody cut em off. oh, i wish you d drive off the face of that cliff. that s the only thing i d ever heard sayin about harmin anybody. did you think that your mother could possibly have done the thing that they were
seem to care as much about that. good friend tamara says that for becky, it was all about getting to see kay. she continues to ask if well, can we go in and see her? can we go in and see her? they tell us no. reporter: eventually, one of kay s closest friends suzanne frazier did get back to her bedside. could you recognize her if you didn t know that it was her? not really, not really. all puffed up? very very face was very full. head wrapped. so i asked the nurse, said, is she brain dead? and she didn t answer me. reporter: kay was just clinging to life, some wrenching decisions had to be made. and doctors were waiting for guidance from her husband david, who arrived back from a business trip in california. how did david seem, the husband? he seemed very distraught. he seemed very upset. you could hear him screamin through the double doors. and he said, oh, god, no, no, kay.
or just cruel enough to just just beat this woman so severely, and then is gonna go next door and commit another burglary? reporter: becky had been at work that morning with her 19-year old son christopher. the two of them raced home to the scene and met up with her older son michael. they re both there, so your mother and christopher are there? yeah, they pulled up together at the same time, with columbia county officer. we all walk around back to kay s house, and my mom, she sounds very distraught. she s she s screamin kay s name. she shows up at her house while you were all in the backyard there? right. they show up on scene and and they re, wondering what s going on, and they re they re pretty pretty shaken up. reporter: everyone else in becky s family was accounted for, her husband tony, a long haul trucker, was away on the road, her three younger children were fine at school and day care. the investigator said becky s focus then turned to kay. understanda