Okay, so hashing out the theories:
1) Someone comes to the door Monday morning looking for Dad but he's already left. That person takes advantage of an alone-Dylan and makes a split-second decision to abduct him.
Problem: that doesn't explain what happened to the backpack and fishing pole. Someone who happens upon a 'lucky' situation and takes advantage of it is not going to waste time stealing a backpack and fishing pole nor would they even necessarily know those are Dylan's primary belongings. This person would have no way of knowing when MR was to return and would simply grab Dylan and make off.
2) Dylan leaves in the middle of the night to seek out his friends and is abducted along the way or becomes involved in some unfortunate accident.
Problem: that doesn't explain the lack of text messages after 8pm on Sunday. Surely, Dylan would have told his friends he was on his way. That also doesn't explain how Dad saw him and tried to rouse him Monday morning. The only way I could see this working is if Dylan's cell phone was dead, he didn't have his friends' phone numbers memorized and therefore couldn't call out from a landline, AND the internet wasn't working for some reason.
3) Dylan left the house sometime after 7:30am on Monday to seek out his friends or go for a walk by himself and encountered an abductor or unfortunate accident. That might explain the missing fishing pole and backpack but....
Problem: it doesn't explain the lack of text messages after 8pm on Sunday.
4) Dylan's dad did something to/with him on Sunday night or very early Monday morning. That would explain the missing backpack and fishing pole. It would also explain the lack of texts after 8pm Sunday night.
Problem: seems like LE knows something we don't and are still examining local RSOs and other avenues, not naming MR as a suspect or POI, etc. We also know nothing of any evidence found in either vehicle or in MR's home that would point to him.
5) Alien abduction. I suppose that would be the only theory that explains everything!
Feel free to add to this. Just trying to think out loud....
