I'm not sure I have a theory for where Kyron is, but my theory of someone being convinced to take him for his safety is losing hope. After all the statements made I think it's possible that Kyron was mistreated, that Terri might have been caught in an affair with the landscaper, and that she might have had a drinking problem. Reading between the lines, it sounds like lots of arguing went on over the kids and in the marriage. Lots of unhappiness and admitted talk of divorce. She could have wanted out of her marriage, or knew he was getting out, but knew that Kaine would not allow her to get custody of the child, that he not only wanted his kids but his wives' kids as well, so pillow talk of killing him came up, but not carried out. It's possible that Kaine was monitoring Terri's computer activity and was going to use everything against her in a custody fight before Kyron ever went missing. I believe that Terri was set up to be caught sexting with MC, and may have been under the influence of ambien or booze when doing that. Terri was unhappy, pretty isolated out in that rural area with no job, and apparently didn't think her husband cared for her anymore, so she was vulnerable to getting online with men. It's hard to believe that she sexually manipulated all men that way, because nothing else has been said. Regardless, the state of things doesn't make it look good for Kyron IMO.