Case 330
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.
Reese
“Hayden and Kai are both innocent.”
Lane
“Either Reese or Finley is guilty.”
Hayden
“Reese is innocent.”
Kai
“Lane is guilty.”
Finley
“Reese and Hayden are both innocent.”
Who is guilty?
Solution: Lane
If Lane is guilty, Lane's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.