Case 102
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.
Cameron
“Either Jules or Hayden is guilty.”
Jules
“Either Cameron or Hayden is guilty.”
Rowan
“Neither Cameron nor Hayden is guilty.”
Harper
“Hayden is innocent.”
Hayden
“Neither Cameron nor Harper is guilty.”
Who is guilty?
Solution: Jules
If Jules is guilty, Jules's statement is false and every other statement is true. Testing the other suspects creates at least one contradiction.