This true crime biography reveals the full story of a remorseless serial killer once proclaimed the most dangerous man in Britain—and where he is now. For a few days in the winter of 1975, it looked as though police had unmasked a serial killer whose reign of terror was unprecedented in British crime history. Convicted of three killings, suspected of another eight, Patrick Mackay was dubbed the Monster of Belgravia, the Devil’s Disciple, and simply The Psychopath. The Nazi-obsessed alcoholic had stalked the upmarket streets of West London hunting for victims, and gruesomely murdered a priest he had once befriended in Kent. Yet many of his suspected murders remain unsolved to this day. Not long after his conviction, the public outrage at his crimes faded. Now, after more than forty years behind bars, Mackay has been allowed to change his name and transfer to an open prison—steps that put him closer to freedom. For the first time, Britain’s Forgotten Serial Killer reveals the full, untold story of Patrick Mackay and the many still-unsolved murders linked to his case.Serial killer Patrick Mackay was dubbed the most dangerous man in Britain when he appeared in court in 1975 charged with three killings, including the axe murder of a priest. The Nazi-obsessed alcoholic had stalked the upmarket streets of West London hunting for victims and was suspected of at least eight further murders. Now, after more than 40 years behind bars, where he has shunned publicity, Mackay has been allowed to change his name and win the right to live in an open prison - bringing him one step closer to freedom. For the first time, Britain’s Forgotten Serial Killer reveals the full, untold story of Patrick Mackay and the many still-unsolved murders linked to his case.