Case 036
The Empty Safe
A small office safe was found empty in the morning.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Kendall
“Either Lane or Taylor is guilty.”
Lane
“Kendall is guilty.”
Parker
“Quinn and Taylor are both innocent.”
Quinn
“Either Kendall or Parker is guilty.”
Taylor
“Lane is innocent.”
Who is guilty?
Solution: Kendall
If Kendall is guilty, Kendall's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.