So what happened to that femur...?

[Batman]

Open bone breaks with the bone exposed are quite white. There are no major attachments along most bones except for their ends with tendons. That's why with an open break just the bone penetrates to the outside with nothing attached to it. Should look like a white stick.

[Abby Normal]

Thanks to both of you! A few more questions:
How easy or hard is it to deflesh a bone the way it is done on Kelly? It seems to me that there is no meat left on the bone at all; is that an expected outcome from a frenzied knife attack, of must the killer have made an effort to deflesh it entirely?
I take the point about exsanguination on board, but I note how face and ribcage seems to have been very bloodied and had flesh attaching. Is the femur encased in some sort of sheath that can easily be peeled off, like the skin of a banana or something like that?
Are we looking at the bone itself, or at a tendon? Is that what Batman suggests? I seem to remember that it has been suggested before that it is not the actual femur, I think it was Karyo Magellan who said something such.

to me he seems to have flayed the flesh down to the bone and took care to actually make sure his knife was up against the bone as the final cut. It almost looks like he scraped the bone clean as he did so.

[Fisherman]

Thanks to both of you! A few more questions:
How easy or hard is it to deflesh a bone the way it is done on Kelly? It seems to me that there is no meat left on the bone at all; is that an expected outcome from a frenzied knife attack, of must the killer have made an effort to deflesh it entirely?
I take the point about exsanguination on board, but I note how face and ribcage seems to have been very bloodied and had flesh attaching. Is the femur encased in some sort of sheath that can easily be peeled off, like the skin of a banana or something like that?
Are we looking at the bone itself, or at a tendon? Is that what Batman suggests? I seem to remember that it has been suggested before that it is not the actual femur, I think it was Karyo Magellan who said something such.

[Batman]

A Grade 3 muscle tear is either a very deep muscle tear or a complete tear. Each end springs towards the tendon, revealing bone in the middle.

Tendons are quite white and can be mistaken for bones.

Red flesh, such muscles, don't penetrate bone. It just encases bone.

Bones exposed through wounds can appear quite white. Be it a jawbone from wisdom tooth extraction, an exposed rib from a knife wound, or a finger tendon and bone.

MJK, like the other C5 were also exsanguinated. Meaning blood from the body was mostly displaced through their necks by action of the heart pumping the blood out until there is organ failure. Meaning, less blood in the body was present during and after mutilations.

[Sam Flynn]

Defleshed bones are white, or at least whiter than their surroundings; check this out next time you buy a leg of lamb or beef.

[Fisherman]

I was walking my dog today when something suddenly struck me. As I got home, I took a look at the Kelly photo, especially the femur of her right thigh. I´ve seen that picture a thousand times, as most of us out here will have done. But I have not before reflected over this question, and I think I may need a medico or a butcher or suchlike to help me out with the answer to it:
Why is that femur totally white?
Should there not be blood on it?
Or attaching pieces of flesh, of sinew or something like that?
What does it take to make it look the way it does?
Is it a likely outcome of somebody just cutting flesh away in a frenzied manner, or is it more of a painstaking job that lies behind it?

Any takers?