Kind of random but..

http://www.msn.com/en-us/money/companies/amazon-worker-jumps-off-company-building-after-e-mail-note/ar-AAkRIv4?li=BBmkt5R&ocid=spartanntp "The man survived the fall from Amazon’s 12-story Apollo building..." How did he survive? For reference, the building in question: http://www.zerohedge.com/sites/default/files/images/user5/imageroot/2016/11/28/amazon%20apollo%20building_0.jpg 3 or 4 stories maybe, if you land in the grass or bushes; but 12 stories?

Maybe the guys a martial artist, and has severely conditioned his body. Conditioning makes your bones denser, and denser. To the point where you bones become denser than concrete, though you are sacrificing your body for it. Here is an Iron Hand master, granted he is buff as well. It goes to movie clips afterward for some mild entertainment. https://www.youtube.com/watch?v=zEhhAGhUYjE

Focusing your energy to break things is a lot different from a random impact into concrete or whatever. Any martial artist can get his/her bones broken. It's a combination of external conditioning reinforced with internal chi energy. You hit something wrong you can still break your hand.

It is actually a scientific fact that it strengthens your bones, I take martial arts. Only kung fu uses qi. In Thailand Muay Thai boxer's train to kick down palm trees.

I'm not going to speculate without more details. Maybe he landed on a car with lots of give. I have seen parkour of people jumping to other buildings that were as much as 2 or almost 3 stories down but they also had lots of forward momentum.

I know it thickens your bones in the places where you impact regularly with training but I doubt that would keep your back from getting broken from a high fall which is the issue. Along with the sudden stop g-forces liquefying your internal organs.

He could have clipped the bottom ledge, bounced into a tree and landed on a car, no idea. A guy jumped off the 8th story where my mom works, his head splattered on the cement. The blood stains were there awhile.