They aren't random facts. They are the facts that nobody should pretend that they don't exist. Somebody who doesn't know them would believe that the practices of beheadings in the countries which practice Sharia law and by the ISIS fighters are something done "randomly" whereas they in fact practice according to their beliefs and the religious texts they consider "unchangeable" and the words of God.

https://en.wikipedia.org/wiki/Public_executions_in_Saudi_Ara...

https://en.wikipedia.org/wiki/Beheading_in_Islam