Seven people are shot and killed and 12 wounded in the <a href="https://en.wikipedia.org/wiki/Milperra_massacre" id="mw7w" rel="mw:WikiLink" title="Milperra massacre">Milperra massacre</a>, a shootout between the rival motorcycle <a href="https://en.wikipedia.org/wiki/Gang" id="mw8A" rel="mw:WikiLink" title="Gang">gangs</a> <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Bandidos" id="mw8Q" rel="mw:WikiLink" title="Bandidos">Bandidos</a> and <a href="https://en.wikipedia.org/wiki/Comanchero_Motorcycle_Club" id="mw8g" rel="mw:WikiLink" title="Comanchero Motorcycle Club">Comancheros</a> in Sydney, Australia.