Synonyms for Liquidator (same or very similar meaning)
WordNet sense 1 (a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)):
murderer, manslayerWordNet sense 2 ((law) a person (usually appointed by a court of law) who liquidates assets or preserves them for the benefit of affected parties):
receiverFrom the ODE community, based on WordNetadd/edit