a reason for doing something
motive
someone who looks for information to solve crimes
sleuth
not guilty of a crime or other wrong act
innocent
responsible for committing a crime or other wrong act
guilty
to try and find out the facts about something, such as a crime or accident in order to learn how it happened
investigate
an excuse for not being somewhere or doing something
alibi
a person who is believed to be possibly guilty of committing a crime
suspect
a person who has been attacked, injured, robbed or killed by someone else
victim
a person whose job is to find information about something or someone
detective
something unimportant that is used to stop people from noticing important details
red-herring
a belief or idea about something
hunch