detective/sleuth
a person who investigates mysteries and gathers information
mystery
something that is secret or unknown
red herring
a false lead that throws the investigator off track
alibi
an excuse that a suspect uses to show that he/she was somewhere other than at the scene of the crime when it was committed
crime
an act that is against the law
witness
someone who saw the crime being committed and can provide some information
victim
someone who is harmed or suffers some loss because of the crime
evidence
something that helps prove who committed the crime
culprit
the person accused of doing something wrong or committing a crime
motive
the reason for doing something
clue
a fact or object that helps to solve mysteries
suspect
a person who is believed to have possibly committed the crime