<Tr> <Td> Wright St Bikie Murders </Td> <Td> 8 October 1999 </Td> <Td> Adelaide, Australia </Td> <Td> 0003! 3 </Td> <Td> 000! 0 </Td> <Td> Hell's Angels feud </Td> </Tr> <Tr> <Td> Childers Palace Backpackers Hostel fire </Td> <Td> 23 June 2000 </Td> <Td> Childers, Queensland </Td> <Td> 0015! 15 </Td> <Td> unknown </Td> <Td> Arson attack by Robert Paul Long, which killed 15 international backpackers </Td> </Tr> <Tr> <Td> Monash University shooting </Td> <Td> 21 October 2002 </Td> <Td> Melbourne, Victoria </Td> <Td> 002! 2 </Td> <Td> 005! 5 </Td> <Td> Mass shooting attack by Huan Yun "Allen" Xiang </Td> </Tr> <Tr> <Td> Churchill Fire </Td> <Td> 7 February 2009 </Td> <Td> Churchill, Victoria </Td> <Td> 0010! 10 </Td> <Td> unknown </Td> <Td> Arson attack by Brendan Sokaluk that killed 10 people, during the Black Saturday bushfires period </Td> </Tr>

When is the last time australia had a mass shooting