Question: Which English convicted drug-dealer killed two persons in a gun and grenade ambush?
Sentence (from "Dale Cregan"): Dale Christopher Cregan (born 6 June 1983) is an English convicted drug-dealer and murderer who was sentenced to a whole life order in prison for four counts of murder (including the killing of two police officers) and three separate counts of attempted murder, meaning that he will never be released from prison.
Relevant evidence: Yes