Please know this is not a criticism of your post or anyone elses, but I truly don't buy into the thought that James won a large sum of money and someone followed him home. If that were the case, I truly believe LE would be sharing a heck of a lot more information than they have been. Also, they would warn the public that they might be in danger, if someone was desperate for money to follow folks home from the casino.
I wish it was that simple, for the family's sake, and that Jayme was found already.
This just smells of something personal to me. I am still not ruling out home invasion, but the more I read about this, the less I lean towards that.