From Longman Dictionary of Contemporary Englishdeath squadˈdeath squad noun [countable] PMa group of people who have been ordered to kill someone’s political opponents
Examples from the Corpus
death squad• This was the group, formally under army control, that operated as a death squad during the rule of Ferdinand Marcos.• Those trained allegedly formed a death squad which directed its activity against pro-ANC activists.• The death squad published a statement claiming they would cut off the head of every Committee member. 