The angry villagers have lynched two suspected child-lifters already.

beaten : having been defeated.
captured : take into one's possession or control by force.
killed : cause the death of (a person, animal, or other living thing).
mutilated : inflict a violent and disfiguring injury on.
lynched : (of a group of people) kill (someone) for an alleged offence without a legal trial, especially by hanging.

Synonym of lynched is killed