Patrick Mackay

Patrick Mackay
Born
Patrick David Mackay

(1952-09-25) 25 September 1952
Middlesex, England
Other names
  • David Groves
  • The Psychopath
  • The Devil's Disciple
Height6 ft 2 in (1.88 m)
ConvictionManslaughter (1975)
Criminal penaltyLife imprisonment, 20-years minimum term
Details
Victims311
Span of crimes
February 1974  March 1975
CountryUnited Kingdom
Date apprehended
March 1975

David Groves, better known by his birth name Patrick David Mackay (born 25 September 1952), is a British serial killer who is believed to be one of the United Kingdom's most prolific serial murderers.

He was convicted of three counts of manslaughter and two additional cases which were left to lie on file. Detectives said he confessed in remand to the murders of six more people across London, Essex and Kent in England between 1973 and 1975. All of them were found to match existing unsolved murders.

Officially diagnosed as a psychopath at the age of fifteen, Mackay has been repeatedly denied parole since 1995 on the basis that he is considered too dangerous for release, although since 2017 he has been incarcerated in open prison conditions with day release provisions. In 2020, authorities launched fresh inquiries into his suspected murders, but they were unable to find sufficient evidence. Former Dartford MP Gareth Johnson has repeatedly voiced his concerns over Mackay's potential release. In July 2022, it was revealed that Mackay's case had been referred to the Parole Board again.