I wonder what the deal is with this suspect? Do they have anything that points to him or was he just handy for LE?
This guy was either sincere in wanting to help the parents understand what was being said to them and what they were being asked and he also has a little girl the same age as Maddie and she reminds him of his daughter OR
he is guilty and wanted to insert himself in the middle of the investigation so that he would know everything that is going on and as he was inside the hotel or whatever that is...if they found his hair there or anything he could say that he had been in the place helping the parents so his hair would likely be there.
So far I haven't read anything that makes me believe that this guy took Maddie. He just seems to be concerned for her and her parents and is trying to help the parents as much as possible. Who knows though.