[I wonder if the Uncle and friends didn’t rape her and then kill her and then try to “justify” it as an honor killing.]
That's what I was thinking. They hid the evidence. But local law probably requires a huge burden of proof, like four witnesses. Too bad the police can't just turn the uncle and his friends over to the girl's family and neighbors to exact punishment.
At the same time the locals think highly of torture, so the Uncle and his buddies aren't out of the woods. I suspect we will eventually see one o them without part of his skin covering, and the others will be confessing.
Once the Moslems get their four witnesses, that's it for all of 'em.