there was something that was bothering me. >> reporter: so even though the husband had an alibi, that out of state business trip. >> he's on your radar and you both know that? >> yes. so i'm watching him pretty, pretty close. >> reporter: by that point edmunds was trying to determine exactly what had happened on hot springs drive. he had his team take pictures of kay, collecting any physical evidence from that confrontation in the house. and they came up with something, a bit of human hair found under kay's fingernails. it just might be from her attacker. >> she had defense wounds to her -- to her arms, to her hands. she was -- you know, bruises everywhere, all over her body. >> reporter: all indicating something else, kay had fought back. and whoever assaulted her had been on the prowl for something. deputies shot video of the upstairs bedroom. it had been looted, with jewelry and other valuables missing.