Coronial
WAprison

Inquest into the Death of Damien PURNELL

Deceased

Damien PURNELL

Demographics

47y, male

Date of death

2018-08-20

Finding date

2020-11-04

Cause of death

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

AI-generated summary

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.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.

Contributing factors

  • pre-existing undiagnosed coronary artery disease (65% stenosis left anterior descending)
  • use of synthetic cannabinoids (SGT-263 and CUMYL-PEGACLONE/Kronic)
  • access to illicit drugs within prison despite security measures
  • cardiac sensitization from methadone
  • lack of knowledge of cardiac disease (asymptomatic)
  • young male with cardiac risk factors using highly potent designer drugs

Coroner's recommendations

  1. The Department of Justice to continue implementation of the Western Australian Prisons Drug Strategy 2018-2020 with focus on reducing both supply and demand for illicit substances
  2. Enhanced targeted drug testing for synthetic cannabinoids in prisons
  3. Continued prisoner education regarding the specific dangers of synthetic cannabinoids, particularly their cardiac toxicity
  4. Continued expansion of drug and alcohol treatment and rehabilitation services within prisons
  5. Ongoing intelligence-led strategies to prevent illicit substance entry into prisons
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