CASE ZERO
Case 336

Who is guilty?

Exactly one suspect is guilty. The guilty suspect lies. Every innocent suspect tells the truth.

Ada: “Neither Luke nor Skye is guilty.”
Luke: “The guilty person is one of Ada, Mia or Ben.”
Mia: “The guilty person is one of Luke, Ben or Skye.”
Ben: “Ada is innocent.”
Skye: “The guilty person is one of Ada, Mia or Skye.”
Random case
Solution: Mia is guilty. Testing each possible culprit leaves this as the only assignment where the culprit's statement is false and all four innocent statements are true.