Case 006
The Broken Seal
A tamper seal on a storage crate was cut overnight.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Taylor
“Either Jules or Sam is guilty.”
Jules
“Neither Sam nor Emery is guilty.”
Sam
“Emery is innocent.”
Reese
“Jules is innocent.”
Emery
“Neither Jules nor Sam is guilty.”
Who is guilty?
Solution: Taylor
If Taylor is guilty, Taylor's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.