CASE ZERO
Case 160

Who is guilty?

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

Ada: “Neither Mia nor Skye is guilty.”
Luke: “Ben is guilty.”
Mia: “Neither Ada nor Mia is guilty.”
Ben: “The guilty person is either Ada or Luke.”
Skye: “The guilty person is one of Ada, Ben or Skye.”
Random case
Solution: Ben 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.