Milperra massacre

The Milperra Massacre, Milperra bikie shoot-out or Father's Day Massacre was a gunfight between rival motorcycle gang members on 2 September 1984, in Milperra, a south-western suburb of Sydney, New South Wales. The gunfight had its roots in the rivalry that developed after a group of Comancheros broke away and formed the first Bandidos Motorcycle Club chapter in Australia. Seven people were killed and twenty-eight injured and the event was a catalyst for significant changes to gun laws in New South Wales.