I think Somer often stopped by and asked about the dog. Just as she stopped & told Kyle what a good job they were doing on the house. On that day, maybe JH was outside, she asked where his dog was, he told her inside & asked if she wanted to come pet it. Maybe he was wanting to take the opportunity to take some pics of Somer & once inside, she freaked out, threatening to tell her Mom, started to run out of the house, he grabbed her, she fell & died from her injuries. He didn't have the opportunity to undress her, etc. because she wasn't going to be a willing party to his plans. He puts her in the trunk of his car, waits until dark & disposes of her body in a dumpster near his home & leaves the neighborhood, never to be seen at the Gano address again. He moves to Callahan with his Mom & laid low. That is until something spooked him & he high tailed it to Mississippi thinking the LE would not be able to track him down. Maybe the only DNA they have from Somer is touch DNA (possibly on one of her arms or where ever he grabbed her to keep her from running out of the house) & the touch DNA was contaminated with the trash in the dumpster, so it's going to take longer for the results to come back & that's why they haven't charged him with her murder yet. There has to be more to the story for Sheriff Bessler to go on the record stating JH is a person of interest in the Somer Thompson case. He hasn't done that with anyone else - don't you find it very telling?