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Homicide Convictions Reversed for Colorado Paramedics Who Injected Ketamine Into Elijah McClain

The court said a judge gave jurors the wrong guidance on the negligence standard, sending both cases back for possible retrial.

  • On Thursday, the Colorado Court of Appeals reversed the criminally negligent homicide convictions of former Aurora paramedics Jeremy Cooper and Peter Cichuniec, ordering retrials in the 2019 death of Elijah McClain.
  • McClain, a 23-year-old Black man, died after Aurora police restrained him and paramedics injected him with ketamine in August 2019, leading to a 2021 grand jury indictment of both responders.
  • Judges ruled the trial court provided incorrect instructions on the legal standard of care for negligent homicide, failing to clarify the definition after jurors indicated they didn't understand how to apply it.
  • Cichuniec's second-degree assault conviction remains in place, while Colorado Attorney General Phil Weiser vowed his office is committed to defending the remaining convictions through the appeals process.
  • Multiple trials involving three Aurora police officers and two paramedics have occurred since the case gained national attention following the 2020 death of George Floyd in Minneapolis.
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A court of appeal found that the jurors had not been properly referred in the previous trial after which the two men had been sentenced for giving a high dose of ketamine to a 23-year-old black man at his arrest. He died three days later of a heart attack.

·Paris, France
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9NEWS Denver broke the news in Denver, United States on Thursday, June 4, 2026.
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