Well, Muslims appear to appreciate beheading. What’s good for the goose....
Beheadings are done ONLY for murderers. That would be premeditated murders, not self defense, protecting one's family, friends, home, etc. They are done in the town's public square on Friday mornings, as Friday is their "holy" day.
One murders = one dies.
They don't have the endless litanies of lawyers trying to "save" the lives of those cold-blooded murderers.