A triple killer from Co Armagh who died in jail of septicaemia had refused outside medical treatment, a report revealed today.
As well as not attending important medical appointments, Mark Maginnis's poor management of his diabetes - first diagnosed when he was just nine years old - had a detrimental impact on his health, according to a prison ombudsman investigation.
His death in Maghaberry Prison in October 2010 after a sudden deterioration in his condition was consistent with septicaemia due to infection of foot ulcers.
Maginnis, 40, from Portadown, once refused to provide a drug sample and self harmed on occasions. At times he suffered from low mood and anxiety and worried about the long-term consequences of his illness, the report said. He overdosed in March 2007.
Pauline McCabe, the Ombudsman, said his death was not expected. She added: "There were quite complex reasons why Mr Maginnis may not have co-operated with his care, one of which was that after more than 19 years in prison he found the outside world quite daunting when he needed to attend hospital."
Maginnis was jailed for life in 1992 after he was convicted of the murder of his 47-year-old father, RUC Constable Alfred Maginnis, and the murders of his lover Sandra Brown (aged 29) and her husband Jeffrey (aged 30) on April 30, 1991.
He was aged 20 at the time of the killings. He shot all three at close range with his father's police-issue revolver. He killed his father at the family's home at Five Acres, off the Gilford Road, Portadown, before driving a short distance to shoot the Browns at their house in Kensington Park.
After the murders Maginnis returned to his family home to reload the gun and collect money before driving to Larne, where he was later arrested after a high-speed car chase.
During his trial the court was told that he had carried out the murders because he had heard from his father that his lover Mrs Brown had made an offensive remark about him.
He got into a row with his father before shooting him in the chest. As his father lay injured on the ground asking for a doctor he shot him in the head.
At his trial a QC described him as being "absolutely deranged" and said that when he was aged just 16 he had pointed a shotgun at his mother and threatened to "blow her away".
Maginnis's mother Anne wept as he was jailed for life for the three killings. A statement after he died said she forgave him.
Mrs McCabe's report will be examined by the Northern Ireland Prison Service and the South Eastern Health and Social Care Trust.
She said: "Whilst Mr Maginnis's overall care was found to be consistent with that he would have received in the community, a small number of concerns were identified, particularly in respect of the prison service's response to his difficulty in providing samples for drugs testing for medical reasons."