Big Think: The Stonehenge Man

I still hate it, but technology is amazing. I found this video on Big Think, and I don't doubt its authenticity:
http://bigthink.com/big-think-tv/reconstruction-gives-stonehenge-man-a-face
It's amazing that scientists today can redesign someone's facial features, excepting the color of their eyes and hair, based solely on their skull. Even a skull that's over five-and-a-half-thousand years old. That, however, raises another question, of whether or not Stonehenge, where the skull was found, existed at the time of this man's life - and death. Because, after all, we don't really know what Stonehenge is, or why it was built, or by whom.
So just how old is Stonehenge? Well, the best evidence suggests that it was built in the second millennium before Christ, between three thousand and four thousand years ago, though nobody can agree on the exact century, or why it was built (http://news.bbc.co.uk/2/hi/7625145.stm, http://press.nationalgeographic.com/2008/05/29/stonehengeuse-as-cemetery/). At any rate, it would seem that the "Stonehenge Man," whose skull is seen in the video, perished centuries before Stonehenge was built, and was likely discovered there by chance. But that still doesn't explain why Stonehenge was built. There is, of course, the famous calendar theory, which states that that the rising sun, when viewed through the stones, indicated the time of the year. However, there's no evidence that this is anything more than a coincidence, and that if it is, it was the sole purpose. There's also the theory that the site was constructed as a cemetery, but there haven't been enough bodies discovered near the site for this to be the case. The theory I subscribe to is that the site was constructed as a sort of grave marker for the aristocracy or monarchy of the area, akin to the pyramids of Egypt, as evidenced by the discovery of elaborately-buried individuals there. As for the idea that Celtic pagans constructed Stonehenge as a religious site, there is no evidence for this. Although pagans did construct stone circles, they would not have remotely resembled Stonehenge: they were simply circles with a perimeter of stones. And as for other theories, including those stating that Stonehenge is a memorial for victims of some battle or hallowed ground for a lost culture...we simply have no way to know if they are true, and likely never will.