The objective to me is clear, this was to be a brutal murder. I can only speculate a motive, but the odds-on favorite would certainly be drug related. Meth is big money and people who somehow threaten the flow of that money can and do get killed. It might not even be James, Denise or Jayme - it could just as easily be a message to somebody else.
I know there’s a lot of resistance here to thinking it’s drug related, but there’s no denying that meth manufacturing and distribution has a huge presence in Barron County. When you’re in a snake pit and something bites you it’s probably a snake.