ITA with the hinky vibes!!
There are too many inconsistencies in the stories that came from some of the folks involved in Justin's case. There are two theories that I think may explain Justin's disappearance:
1) Money! I'd like to know when Justin most recently received a paycheck and how much money he had access to when he vanished. I can't help but think perhaps his disappearance had something to do with all the Christmas shopping. I'd also like to know who received what as Christmas gifts and what were the costs of those gifts. We know someone was sporting Justin's sunglasses, so what else was taken from him, I wonder?
2) Sex! Some may think that perhaps Justin and dude's gf may have had a secret fling or that Justin may have made unwanted advances toward her which might have led to a violent encounter in the shed. While I think that's possible I don't know if Justin is the type to ruin a friendship over a girl who admittedly didn't even like him as a friend. However, I wonder if there's someone who, while under the influence of alcohol (or whatever), might have made a pass at Justin in the shed. I could certainly see that getting out of hand which in turn led to violence. I've no reason to suspect that, but the idea sits right in the pit of my gut.
I hope and pray the forensic evidence taken from the shed includes enough biological evidence to give the authorities the answers they need to move forward with Justin's case. He strikes me as the kind of young man any of us would want as our son, brother, friend, etc. I hate this for his loved ones.
All of the above is MOO.