Motives for murder (generally) fall into four categories.
The four L's-
Lust
Love
Loathing
Loot
I'm always trying to reverse engineer the events of that week in 2008.
IMOO-
I do think that Troy & Dave's murderer is one & the same.
I think the three fires & type of weapon and the Labor Day timeline tie the cases together.
It's been established by LE that Dave & Troy did not know each other.
@Lilibet is correct that Troy's mom tried to call him early morning of 9/2/2008 (approximately 6 am west coast time) and there was no answer and that he was not found until the afternoon of 9/4/2008.
There are video stills of Troy leaving the Pilot Truck around 6 pm on 9/1/2008. When he was found Troy was wearing these same clothes per
@Troy's mom .
What was this person's or persons motivation to kill Dave and set two fires the night of 9/3/2008 or early morning of 9/4/2008 when he was found?
Lust?
Love?
Loathing?
Loot?
IF the same person killed Troy, why?
IMO, he seems like he was a super nice guy that was minding his own business. I don't think, IMO, that Troy was an intended target but was collateral damage.
My speculation has been that, IMO, Troy was an unwitting witness to someone or something at the Pilot Truck Stop in Central Point Oregon around Labor Day weekend 2008.
He was very careful about selecting his campsites according to
@Troy's mom and was camping in just his sleeping bag in thick underbrush (JMO, in a blackberry thicket?)
So Troy had to have trusted the person for them to know where he was sleeping, that or the killer was incredibly observant of Troy and his activities. Why return to the scene of the crime? Why the 14th?
It seems like that was a real risk and yet this person's plan has worked so far...
As I've posted previously, I think the killer was familiar with Dave, his location, his routine and Jackson County and the backroads of Southern Oregon. I've also speculated about a specific route that, IMO, might have been used.
What the heck happened?
Who was out there in the Siskiyou mountains on a moonless night in early September?
Was Dave asleep and someone snuck in on him?
Did someone follow him home from the lake?
Was there a confrontation at the cabin at 18196 DIMR?
Did Dave invite the person(s) into his home because he knew them or was expecting them?
IMO, I think the vacant vacation cabin near the lakes was used on 9/2-9/3 to observe the comings & goings of Dave and to observe other activities in the area around the Lindsey Ranch, the quarry, Lily Glen & Dead Indian Memorial Road. A "down day" so to speak, to rest up, to gage the environment, who was in the area, make a plan... mark a road with yellow tape maybe...
ALL IN MY OPINION ONLY
There's still so many questions... We need someone dedicated and deeply curious to go back over this case.