Australia's Toughest Prisons: InmatesThese are the stories about Australia's hardest inmates, from Australia's hardest inmates the true and uncensored account of life inside Australia's toughest prisons, from the country's number one bestselling true crime writer. 'Porky Pig' stalks the yard, snorting and grunting as he stares down the prison guard. 'Whatcha looking at,' yells Martin Bryant, Australia's worst serial killer. The guard stays silent. Says nothing. He simply takes one step