Reported an image - facebook allows it to stay

So today I found a group on facebook who had posted several pictures of a man who had been killed by a tactical response team. There was blood everywhere, and everyone in the group was commenting on his death, saying it was right and justified (because he was a suspected ********). I reported the set of images, only to have facebook get back to me saying they did not find anything wrong with the images as they did not violate their community guidelines. Taking a look at these guidelines, I found the phrase: <br> <br> \We remove graphic images when they are shared for sadistic pleasure or to celebrate or glorify violence."<br> <br> Here is the link to that group"