Following the shocking news of Foo Fighters drummer Taylor Hawkins‘ death, more details have emerged as to what transpired on Friday in Bogota, Colombia, where the band had been scheduled to perform.

A tweet from the Attorney General of Colombia on Saturday stated that 10 substances were found in Hawkins’ urine, including THC (marijuana), opioids and both tricyclic antidepressants and benzodiazepines, the latter two of which are used to treat depression.

“The National Institute of Forensic Medicine will continue the medical studies to achieve total clarification of the facts that led to the death of Taylor Hawkins,” the tweet continues. “The Office of the Attorney General of the Nation will continue with the investigation and will report the results obtained within the framework thereof in a timely manner.”

The Colombian news magazine Semana, citing “authorities,” also reported that Hawkins had an enlarged heart, which “collapsed” due to the “cocktail of narcotics” found in his system, and that the cause of death was an overdose of heroin mixed with antidepressants and benzodiazepines.

The local government of Bogota had previously tweeted that an ambulance had been dispatched to a hotel “north of the city” in response to call about a patient suffering chest pain. When it arrived, a private ambulance was already at the scene. Attempts were made to revive the patient, the tweet stated, but he was unresponsive, and declared dead.

Hawkins was 50 years old.

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