Possibly, but that would explain why there is no death timeline, why the dog was seen walking around with a leash by itself, and dumping a body out of a boat is a lot easier when someone else acts as a counter-balance as it's rolled out.
Out of an Aluminum boat you can see into from the ground even on a trailer. The lack of evidence that he did or could have dumped a body from the boat is pretty convincing. The cops released the fact where Scott went fishing, which gave time for the real killers to know where to dump the body. Sorry, he is a dirtbag, but the evidence didn’t convince me.