Case 127
The Missing Painting
A framed artwork disappeared from a private hallway.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Marley
“Either Jules or Taylor is guilty.”
Hayden
“Either Marley or Taylor is guilty.”
Harper
“Taylor is innocent.”
Jules
“Either Marley or Hayden is guilty.”
Taylor
“Either Marley or Harper is guilty.”
Who is guilty?
Solution: Marley
If Marley is guilty, Marley's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.