Puzzle: Detective Work
Skill: Logically stepping through possibilities and examining consequences

After a burglary, four suspects were interviewed. Below are their statements.
Police know that each told one lie and one truth.  From this information can you tell who committed the crime?

Ashley said:
   It wasn't Derek
   It wasn't Brian

Brian said:
   It wasn't Chris
   It was Derek

Chris said:
   It was Ashley
   It wasn't Derek

Derek said:
   It was Chris
   It wasn't Ashley