Via Daily Mail:

… Earlier today, pictures of one of the ISIS militants’ most savage executions yet were released.

They are shown smashing huge concrete blocks onto the heads of two men accused of murder, who have been made to lie at the side of the road with their hands tied.

Other images show the gruesome aftermath, the concrete blocks having been hurled onto their skulls.

The two men were bludgeoned to death in Nineveh province in northern Iraq after the Islamic police arrested them for robbing and killing three women.

It is known as a qisas punishment – ‘eye for an eye’ retribution. In the background stand bloodthirsty armed jihadists and a baying crowd.