37°57′13″N 23°51′38″E / 37.95361°N 23.86056°E Mihalis Filopoulos (Greek: Μιχάλης Φιλόπουλος; 1985–2007) was a 22-year-old Panathinaikos fan who was stabbed to death on March 29, 2007, at Paiania, a town near Athens, Greece, during a pre-arranged clash with rival hooligans of Olympiakos. His death caused major upset in Greece and sparked a large police investigation into the organised supporters' scene.