A closer look at the unsolved murder of university student Faith Hedgepeth in September 2012, a case resting on a DNA profile with no known match.
Masking Evil by Carol Anne Davis examines 37 killers, all were in good solid professions but revealed their hidden capacity for the darkest of crimes.
Victorino Chua, jailed for life in 2015 has had his appeal bid against his conviction and sentence rejected by judges at London’s Court of Appeal.
In 1919 Bella Wright was mysteriously found dead in a country lane with the only lead in the case being a green bicycle rode by the suspected killer.
The 1996 Port Arthur massacre remains one of the most deadly mass shootings in the world carried out by one individual.