This is akin to how various malefactors and rebels were dealt with in the UK until around 1800. Traitors and rebels had their heads nailed up over the gate of the town they were from to encourage others by their example. There have been a number of criminals hereabouts who ought have gotten the same treatment with their worthless carcasses attached to a steel pole and displayed along the interstate. Not everything in islime is bad.
The Sauds also execute people on fake charges and not validated - not saying that's in this case -- and you want to defend these Wahabbi Islamic scum?