grief stricken, halee agonized to tell police over the suspicions. >> she said what if they want to talk to me? i'm like, you talk. you know? >> reporter: the more she thought about it the more she thought about halee. thaddeus had a bad reputation around town. she could be poking a hornet's nest? making accusations. now halee was dead and heather wondered if thaddeus killed halee to shut her up. >> i felt like he was looking at serious charges. if i had to look for people who had reasons to hurt her, that would have been number one. >> reporter: the day after halee was murdered someone sent heather this snapchat video. it was thaddeus brandishing a gun. you got that video, so that must have really heightened your suspicion. >> huge. i was positive at that point. he did it.