Case 144
The Cut Cable
A network cable was cut in a restricted room.
Rule: exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.
Dakota
“Neither Avery nor Finley is guilty.”
Avery
“Neither Dakota nor Taylor is guilty.”
Finley
“Avery is innocent.”
Rowan
“Either Dakota or Finley is guilty.”
Taylor
“Either Dakota or Rowan is guilty.”
Who is guilty?
Solution: Rowan
If Rowan is guilty, Rowan's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.