Details of the death of a brutal murderer who killed a tribal chief in the early 2000s have emerged in a new report. 

In 2005, David Flynn was sentenced to life imprisonment for the brutal murder of Augustine Maduemezia, 71. Maduemezia, a father of five who had come to the UK from Nigeria, died in his flat after being mortally wounded by a single blow. 

Whilst the 71-year-old lay dying, Flynn and accomplice, John Crilly searched the apartment for valuables - but only walked away with a blender and a mobile phone. 

Now, a report has revealed new details about Flynn's 2022 death from bronchopneumonia and metastatic lung cancer at Durham's HMP Frankland. 

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Flynn died in Durham's notorious category-A prison in late August 2022, at age 55. He had been diagnosed with lung cancer only two weeks before, though had been complaining of pain since June of that year. 

He was serving a life sentence for the death of Maduemezia.

The new report, from the Prisons and Probation Ombudsman (PPO), concluded that Flynn died from a lung infection, called bronchopneumonia, which was caused by metastatic adenosquamous cell carcinoma of the lung (i.e., lung cancer that had spread to other parts of the body).

The clinical reviewer from the PPO concluded that the care Flynn received in prison was equivalent to what he would have received in the community, and did not make any recommendations for improvement.

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Flynn was the fifteenth prisoner to die at Frankland since August 2020. Of the previous deaths, 13 were from natural causes, and one was self-inflicted.

Flynn had been moved to HMP Frankland on January 30 2020, less than two years before his death.

In June 2022, Flynn began to complain of pain in his shoulder blade and abdomen, but the initial blood work and electrocardiogram tests came back clear. 

However, when the prisoner continued to complain of pain in his torso and general unwellness, the prison's GP ordered tests, which came back abnormal. 

Lung cancer, which had already spread to his bone, was discovered when Flynn underwent scans in hospital on August 2, and Flynn was told he had cancer a week later. 

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On August 16, a hospital consultant told Mr Flynn that he was too weak for treatment. The same day, Mr Flynn was moved to a hospice.

Thirteen days later, Flynn died after contracting a lung infection, and died in hospice. 

The PPO writes in their report: "The clinical reviewer concluded that the clinical care Mr Flynn received at Frankland was equivalent to that which he could have expected to receive in the community. We found no non-clinical issues of concern. We make no recommendations."