The model and architect’s cause of death has been confirmed after they were found abandoned outside separate hospitals

Causes of death have been confirmed for an aspiring model and her architect friend, who were both found dumped outside of different hospitals after a night out in the Los Angeles area.

Late on the night of Nov. 13, the body of Christie Giles was left on the sidewalk outside Southern California Hospital in Culver City by three masked men in a black Toyota Prius with no license plates, police say. Hours later, Hilda Marcela Cabrales-Arzola was also dropped off at Kaiser Permanente Medical Center in West Los Angeles a few miles away.

Giles was pronounced dead early the next morning while Cabrales-Arzola died on November 24, less than a week shy of her 27th birthday.

The coroner has since ruled both deaths a homicide. Giles’ cause of death was listed as “multiple drug poisoning,” according to reports from the Los Angeles County Medical Examiner-Coroner’s office obtained by People. She had a deadly mix of cocaine, fentanyl, ketamine and acid gamma-hydroxybutyrate (GHB) – often referred to as the “date-rape drug” – in her system when she died.

Cabrales-Arzola died of multiple organ failure and “multiple drug poisoning”, according to the report. She tested positive for cocaine and MDMA and other undetermined drugs.

Authorities believe the women overdosed at home in a West Los Angeles apartment with a group of men they had met during their night out.

Three suspects have been arrested in connection with the case. In December, police announced the arrest of David Pearce, 40, along with Michael Ansbach, 47, and Brandt Osborn, 42. Pearce was charged with manslaughter while Ansbach and Osborn were charged with being accomplices to manslaughter.

Shortly after his arrest, Pearce was hit with additional charges, including two counts of forcible rape and one count each of rape of an unconscious or sleeping person and sexual penetration with a foreign object.

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