Murder. At the time, Oedipus was proud to have killed a man who'd insulted and assaulted him - normal behaviour. But if it were Laius, the act becomes a crime, because he'd made it one by his own proclamation (in response to Apollo's oracle)! But there's still hope - if the old shepherd can be found. Why?

• He killed all the party
• Laius was killed by robbers
• The shepherd won't recognise him