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Edmonton police officer and two community peace officers charged after in-custody death

Mathieu Labrie, 32, Jeffrey Mullenix, 52, and Const. Yi Yang, 35, jointly charged with failing to provide the necessaries of life

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An Edmonton Police Service officer and two former community peace officers have been charged after a man died of fentanyl toxicity while in police custody in 2020.

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On March 16, 2020, a 38-year-old man was found dead inside a cell in the Edmonton Police Service’s former detainee management unit. An autopsy completed the next day found the man died due to fentanyl toxicity.

In a Tuesday news release, Edmonton police said Mathieu Labrie, 32, Jeffrey Mullenix, 52, and Const. Yi Yang, 35, have been jointly charged with failing to provide the necessaries of life.

At the time of the death, all three accused were community peace officers working in the former detainee unit.

Yang is now on administrative leave with pay while the other two accused are not employed by EPS.

The provincial police watchdog, the Alberta Serious Incident Response Team (ASIRT), was directed to investigate and released a report on Oct. 12, 2022. The report noted that the peace officers were not conducting the hourly “arousal checks” required by Edmonton police policy, but their actions were outside ASIRT’s mandate.

Edmonton police investigators were tasked with the follow-up investigation, which was then sent to the Calgary Crown Prosecution Service for an opinion.

Edmonton police said they’re not able to provide further comment or information about the incident or investigation because the matter is now before the courts.

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