Many states in the USA have Capital Punishment as a deterrent to perpetrators of 1st Degree Murder.
Texas is one state that actually carries out that sentence regularly for public safety from such convicts.
PLO operatives from Fatah—such as Arafat's deputy Salah Khalaf and operative Abu Daoud—coordinated the operation (In the Olympic Village 5 Sept 1972 Munich).
Abu Daoud later claimed that Arafat approved the overall plan