Case 266
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.
Casey
“Either Hayden or Morgan is guilty.”
Noah
“Casey and Hayden are both innocent.”
Emery
“Hayden is innocent.”
Hayden
“Either Emery or Morgan is guilty.”
Morgan
“Hayden is guilty.”
Who is guilty?
Solution: Morgan
If Morgan is guilty, Morgan's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.