This horrific true crime work tells the story of katherine Knight, a grandmother and slaughter house worker who Became Australia's most notorious female murderer. Author Peter Lalor covered the case for a top daily newsp...This horrific true crime work tells the story of katherine Knight, a grandmother and slaughter house worker who Became Australia's most notorious female murderer. Author Peter Lalor covered the case for a top daily newspaper in Australia and Interviewed Knight's ex-lovers, family, friends, and a former cop who worked on the investigation to present this chilling true story.