The discussion I was addressing regarding a "white truck" was in relation to whether LE had discovered or mentioned a vehicle parked near the trail that could possibly have been that of the killer.
That RL has a white truck, that was searched, is pretty well established and is featured in a number of reports (note that in the comment you replied to I mention that RL had such a truck). But as RL has been publicly cleared, it seems unlikely that the white truck viewed in the news clip has anything to do with either the killer, or the murders.
However, something I find very interesting (once again), in the news clip, is the sparseness of the forest at that time of year. Again, these shots point to how much of a risk the killer was willing to take to do what he did.
You can see from the video that there is clear visibility in every direction. Anyone could have happened on this abduction.