The laptop was also missing from his house. Some people speculated that as he was an aspiring writer, he probably took the laptop with him.
A lot of people leave themselves signed into fb on their laptops.
Edit: which honestly, does not look good for the "car went into the lake" theory. If he did bring the laptop and someone used it to sign into his account, then it likely wasnt an accident. However, thats a lot of leaping to make. It could very well be that someone just had his password, but then that begs the question... why is the dog cage missing. I feel like there is something we are missing that has to do with the dog cage. I wonder if someone was getting a dog and asked for the dog cage OR if they had an extra (or didnt need it) and decided to sell it online. A lot of people these days ask you to deliver things you sell online.
Is there a local buy, sell and trade FB page in the area? Perhaps someone can go scroll thrpugh the messages to late August and see if anyone was looking for/selling a dog cage.