Stories have abounded about Australia's big cats - black, panther-like creatures - since the mid 1800s.
Plumber by trade Roger Mazzocato has spent every spare second for two and a half years hunting a big cat, known in Bealiba in outback Victoria as the Beast of Bealiba.
Mr Mazzocato's hunting ground measures about 200 square kilometres, often scouring the countryside for road kill and dead animals.
He then places them where the cats have been spotted, and mounts cameras on trees - hoping to get a clear shot of the beast.
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