Case 256
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.
Frankie
“Drew is innocent.”
Drew
“Neither Frankie nor Morgan is guilty.”
Morgan
“Drew and Dakota are both innocent.”
Dakota
“Neither Drew nor Morgan is guilty.”
Marley
“Frankie 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.