I'm thinking through the timeline. Dustin was to meet up with his friend on Friday afternoon (perhaps after the friend got of work for the weekend?). We don't know where they were to meet.
Here is one theory as to how it played out. Perhaps Dustin, who got to the area a day earlier, had said I'll meet you at the parking lot by highway 191 and I'll show you to where I ended up setting up camp. The friend shows up and waits. And waits. No Dustin. Calls Dustin. No cell service. It's now getting dark so the friend either drives back to Bozeman to sleep for the night and check with Dustin's other friends. No one has heard from him so the friend gets up early in the morning, drives back to Moose Creek and starts checking the various campsites looking for Dustin's campsite and comes across the terrible scene.
@Snoopster this seems plausible and matches how I'm sorting the little data released by LE.
The big question in my mind right now is what was DK's timeline from late Thurs., 10/10 pm and Sat., 10/12 am when he was found dead?
The fact LE is asking the public for information about sightings of DK's truck in the area during that window, makes me wonder the following:
1. Was DK out with his truck Thursday or Friday night, perhaps meeting up with other friends or a love interest even?
2. Was anyone staying with DK at the campground Th. or Fri. night, and if so, had he picked them up with his truck?
3. If DK had left his campsite in his truck, did he run into the wrong person / people and either brought them back to his campsite or was followed there?
4. Was DK's truck used by someone else while DK was at the campground either with or without DK's permission?
5. Where exactly was DK's truck found? We know LE has the truck, but I don't believe we know yet where it was found.
6. Was DK's truck found somewhere other than the campsite, so LE knows someone else drove it to that location?
7. Alternatively, if the truck was found at the campsite, was there forensic evidence the truck had left the campsite, such as purchase receipt(s) dated later on 10/10 or 10/11 for food, water, charcoal, propane, booze, MJ, etc.
I am sure LE has many of these answers already. And hopefully the FBI engages.
All IMO.
ETA: #2 and clarify #7.