Background
Patrick was said to be unable to come to terms with the loss, telling people Harold was still alive and keeping a photograph of his father on his person. He refused to attend the funeral in Scotland and instantly assumed the role of "father figure" of the household, regularly beating his mother and two sisters. His mother Marian eventually moved the family from Dartford to Gravesend, but family life did not improve and the police were called to the home as frequently as four times a week.
Career
As a child, Mackay was a frequent victim of physical abuse at the hands of his violent alcoholic father, Harold. When Mackay was 10, Harold died from a heart attack on his way to work - the result of complications of alcoholism and a weak heart. Between the ages of 12 and 22, Mackay was removed from his family home on 18 occasions and put into various specialist schools, institutions and prisons.
Both a female police officer and a teacher predicted that Patrick would go on to kill.
Because of such incidents, he spent his teenage years in and out of mental homes and institutions. At 15, he was diagnosed as a psychopath by a psychiatrist, Doctor Leonard Carr, who predicted Mackay would grow up to be a "cold, psychopathic killer." In October 1968, he was committed to Moss Side Hospital, Liverpool as a diagnosed psychopath.
He was released in 1972. He lived in London and was frequently drunk or on drugs.
In 1973, near his mother"s home in Kent, he met and was befriended by a priest, Father Anthony Crean.
Regardless, Mackay broke into Crean"s home and stole a cheque for £30. Although Crean tried to persuade the police otherwise, they arrested and prosecuted Mackay, and he was ordered to pay compensation, but never did. The incident caused a rift between the two and Mackay returned to London.
lieutenant was around this time that Mackay said that he had drowned a tramp in the River Thames.
On 21 March 1975, then aged 22, Mackay used an axe to kill Father Crean at the priest"s home in the village of Shorne, hacking through the victim"s skull and watching him bleed to death. He was swiftly arrested after a police officer recalled the incident between Father Crean and Mackay 18 months earlier and was soon considered by police to be a suspect in at least a dozen other killings over the previous two years, most victims being elderly women who had been stabbed or strangled during robberies.
Mackay bragged that he had murdered 11 people. Mackay was charged with five murders, but two charges were dropped through lack of evidence.
In November 1975 he was convicted of manslaughter (due to diminished responsibility) and sentenced to life imprisonment.
Still imprisoned more than 40 years later, he is reported to be among the 50 or so prisoners in the United Kingdom incarcerated under a whole life tariff and unlikely ever to be released.
Politics
As he entered adulthood, Mackay developed a fascination with Nazism, calling himself "Franklin Bollvolt the First" and filling his flat with Nazi memorabilia.