to work in the pair of crimes he was trying to solve, the murder of kay parsons, and the shooting of her neighbor becky. and then another new lead. a big one. i get a phone call from our jail. they have an inmate that is requesting to speak to me. so i pull mr. jacobs, jerry jacobs, out of his cell and take him to an interview room. you re jerry, right? is that what you go by? yeah. reporter: jerry jacobs was serving time for a misdemeanor parole violation. what s his story? he was pretty upset. jerry tells me that as he was in the jail he saw the news and he saw what happened to kay parsons. and at the time he looks at me and he says, i think i know who did it. and i said, really. tell me. he says, i believe my sister had something to do with it. reporter: and who was jerry jacobs sister? well, becky sears. kay s best friend and neighbor.
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 her saying about harming anybody. did you think that your mother could possibly have done the thing that they were accusing her of? no. and i don t think she could do it. reporter: jimmy edmunds wasn t so sur
i can t tell you anything quite yet, but it s about to get a lot more crazy. reporter: the source wasn t kidding. at the hospital after she d been shot, becky revealed she d been having an affair. but she didn t say the other man s name. then the very next morning, in what could only be considered a lucky break, deputies got a tip from someone close to the family and learned just who that other man was. how about: david parsons, kay s husband? that was a shock. reporter: becky s friend michelle could not believe it. david and she have had an ongoing fling? uh-huh. reporter: david, the investigators learned, had carried on the affair with his wife s close friend and next-door neighbor becky for about six months prior to his wife s death. the revelation of a love triangle would send the investigation into the realm of soap opera and raise all kinds of new questions. you have these next-door neighbors, they re best friends, they re going on trips together. and then behind t
i don t know what else you need to hear from me. i m not tryin to keep anything from you guys. i promise. reporter: before edmunds turned off his recorder, david did share one tidbit. something that linked up with what becky s brother had told edmunds earlier. it was the name of the other person becky had confided in about her affair with david. becky s son, chris. i asked her who knew. you know, if anybody else knew. and she did tell me that christopher knew that she was with somebody else. i don t know if that means anything or not. reporter: sheriff s deputies spent a lot of their investigation looking at the relationships in becky s life. first her son michael. then david. but it was becky s relationship to her other son chris that would prove to be the most intriguing. it was a real, real strange mother/son relationship. when his mother called, he would drop everything and go to mom. whatever she wanted, he was there. reporter: becky, investigators discovered, doted on
but investigators had another. unlikely as it may seem, tiny grovetown, georgia has a few usual suspects, including a young man who lived just around the corner from kay parsons home. we look at our neighborhood and see who s livin around there. and we, you know, we had a frequent flyer in there that a who? a frequent flyer, you know. that that s somebody that we deal with all the time. you know, that that commit the same type of crimes, you know. we knew this guy. we we ve arrested him several times for burglaries. and he lives close by in the area. so if a computer s missing or a piece of jewelry s gone astray? if there s cars broken into you go to your frequent flyer and ask him what he knows about it, huh? if he s close by, we we definitely talk to him. so in this case, on that day, you do that, huh? we do. but we were we were able to quickly rule him out. he he had an alibi. there was no way he could be there. reporter: then from the hospita