Inquest into the Death of Damien PURNELL

47y · Male·organ failure following cardiorespiratory impairment in a man with arteriosclerotic heart disease and recent use of drugs (synthetic cannabinoids)

Damien Matthew Purnell, a 47-year-old prisoner with a long history of polysubstance abuse and undiagnosed coronary artery disease, collapsed in his cell after smoking synthetic cannabinoids (Kronic). Despite immediate resuscitation by prison staff and ambulance paramedics, he suffered irreversible hypoxic brain injury and died three days later. Synthetic cannabinoids triggered a fatal cardiac arrhythmia in a man with 65% stenosis of the left anterior descending coronary artery. While prison medical care was high-standard, the case highlights the inherent dangers of synthetic cannabinoids—particularly in patients with undiagnosed cardiac disease—and the challenges of preventing illicit drug access in custodial settings. The preventability hinged on preventing the drug entering the prison, not on clinical management post-collapse, which was exemplary.