OJ Modjeska is a criminologist, historian and author. She graduated from the University of Sydney with a PhD in Modern American History in 2004, and received her Graduate Diploma in Criminology from Sydney Law School in 2015. In 2015 she was awarded the JH McClemens Memorial Prize by Sydney Law School for her scholarship in criminology. Before pursuing a writing career she worked for many years as a legal writer and editor. She writes books of narrative non-fiction true crime and disaster analysis. Her books are suspenseful narratives which draw on her insights and expertise into history, criminal behaviour and psychology.