____ noun police officers who investigate crimes
____ noun people who see something which has happened, and then tell others (e .g. the police) about it
____ noun people who are hurt or killed by somebody in a crime
____ noun a person who plans and kills another person
____ noun the crime of killing a person illegally and deliberately
____ noun the facts, signs, etc. which tell you who commit ted a crime
____ noun people who are thought to be guilty of a crime
____ (a mystery) verb to find the correct answer to why something happened 9
____ (sth) verb to use facts and evidence to sho'v son1ething is true