I just assumed the camper burned, as I said it was fiberglass. In the pic I posted below the green line it looks like fibrous material, the second pic has debris on a tarp, all items from the scene. Perhaps you don't see it as well because the police already removed what was left and it's on that tarp. We only get the images they want us to see.
I really think worrying about where the camper is, is wasted energy, I doubt they have set it aside, I doubt they have taken the time to hide it to go back to it. Sorry I just think it's worth moving on since they are several thousand kms away now. Presumably.
Not trying to be mean or anything just stating my opinion. Cheers.
Cheers, and thank you. Just my opinion as well, which has now been modified a bit due to your post. I concur that the white you outlined does look akin to fiberglass combustion residue. It could well be that- I'd not seen these photos before, I was going by a video that, I guess, was taken by a bystander at the scene.
One of the items on the tarp looks rather like an oil pan.
It's always been my opinion that there is no such thing as an irrelevant fact in a criminal investigation; declaring something as such too early can turn out to be dismissing something important. So, I tend to delve into details. Just a personal preference.

In this case, I consider the truck quite important, because without it, there's no known (to the public) link between the suspects and the murders. The Rav 4 may be a link, but I've yet to find a LE source saying it was the professor's vehicle.
I've never seen a vehicle fire do the kind of damage seen on that truck, especially the bent cab cornerpost. However, what I have seen do damage similar to that is recovery tow trucks pulling a vehicle out of somewhere. It might well be that, like the Rav4, the initial location was back in the woods a bit, and they hauled it out. If so, the camper remains I expect to see would be there, not where the vehicle is. I also see from your photos that while the fire was apparently quite intense, there appear to be unburned brush very, very close. So, I'm very much wondering if that truck was moved before this pic was taken.
I'm going to try to post the video of the scene. I'm new here, so I may bungle this.
Errr. How did I miss that? One of the items on the tarp looks like a steel stove cover, with holes for the burner rings. It also seems burned, beyond what one would expect from normal use. That IMHO is a very strong indicator that the camper there and was burned.
Alas, I can't find a way to directly attach the video taken at the truck scene. All I can do is give the URL of the news outlet page, and say it's about the third vid down.
Former classmates of northern B.C. murder suspect say he would describe killing himself, others