Case 194
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.
Peyton
“Either Blake or Drew is guilty.”
Blake
“Drew and Finley are both innocent.”
Drew
“Cameron is innocent.”
Finley
“Either Peyton or Drew is guilty.”
Cameron
“Neither Drew nor Finley is guilty.”
Who is guilty?
Solution: Peyton
If Peyton is guilty, Peyton's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.