Sounds like a victim lying down on the ground and being kicked. But if that's what happened, it looks to me like more than one person. If a single killer wants to make sure the victim is dead, kicking seems an odd way to make someone die.
I'm at a loss as to how accurate these reports are. I can't imagine the police would release this type of information, which makes me wonder where the newspaper got it from in the first place, and equally, why the police haven't refuted these reports if not accurate, and why the article is still available if there is no truth to them. The information surrounding Karlie's injuries are quite specific, which does make me wonder.
"The Daily Telegraph can reveal Ms Pearce-Stevenson had injuries consistent with being stomped on and suffered extreme violence to her upper body, particularly her ribs."
http://www.dailytelegraph.com.au/news/nsw/karlie-pearce-stevensons-alleged-killer-daniel-holdom-in-car-crash-which-killed-two-children/story-fni0cx12-1227587079756
In any case, a single killer could quite easily ensure the victim was dead by kicking - for all we know it wasn't an intentional kill, it may have been the consequence of the offender losing his temper, in which case, it is quite feasible he kicked her around violently and/or then stomped on her in a fit of rage. I'm quite frankly loathe to try and determine that line of events based on a newspaper article. But that doesn't mean it couldn't be done. You can kill someone with a rolled up newspaper if you know how to use it.
My other point regarding whether she was "buried" or not could indicate the state of mind of the offender at the time. If she was "buried" in a half decent fashion, it would have shown premeditation and intent in my opinion, as opposed to the offender losing his rag, ending up killing her, when it may not have been his initial intent and then quickly dumping the body off the track behind a log, loosely covered with sticks, branches, etc (if indeed she was even covered with anything at all). I personally believe also that if she was killed by multiple people with intent, in a more "professional" manner, shall we say, the body wouldn't have been left the way it was, I would have expected a much tidier job of disposal or some method to better eliminate her identity, such as burning - not sticking her behind a log, with an item/items of clothing scattered about the place. If you have multiple people involved in an organised fashion (meaning murder in cold hard blood, with a purpose - not in a drug induced state for example) I would think that at least one or more of the offenders would want as much evidence removed as possible, and "many hands make light work", they would have moved her body to a more remote location that was better hidden - not relatively close to a main track and camping area.
That is of course if she was indeed killed at Belanglo. I'm personally still not 100% convinced, only because the police changed their minds on the matter. She may have been simply dumped there, as the police originally suspected, as a red herring, in which case, if the offender used his mobile at that stage, he may have simply been away on a trip (as far as friends, lovers and acquaintances were aware) and someone happened to ring him at that time, or he rang someone to say what time he'd be back, or someone else was aware he was off dumping the body, and they were checking in to see if he'd done it, and where, or any other scenario you can think of (I don't know how phone records/pings work - if they show calls in as well as calls out).
I'm also curious as to the t-shirt being found "near" the body. Does this mean she was semi dressed or naked at the time of her murder?
"T-shirt which was located by officers near the skeletal remains." (Italicised and bolded by me).
https://www.facebook.com/notes/nsw-police-force/detectives-release-image-of-female-found-at-belanglo-state-forest-homicidesquad/10150391124176394
"He said there also appeared to be clothing with the bones." (Italicised and bolded by me). Not on the bones, with the bones.
http://www.smh.com.au/nsw/human-skull-among-new-remains-found-in-belanglo-says-trail-biker-20100829-13xrq.html
The above is my opinion and thoughts only. :thinking: