According to 911 audio obtained by Page Six, Gerber suffered a cardiac arrest at the luxury rehab center and was treated for a suspected drug overdose, though an official cause of death has not yet been released.

Gerber had entered the facility the same weekend he was pronounced deceased, and sources confirm he was under the influence of a substance at the time he checked in.

TMZ reported that Gerber was prescribed ketamine by a doctor despite a documented “regular problem” with the drug, raising questions about his medical oversight.

In the months leading up to his death, Gerber was reportedly supported by a 24/7 sober coach who traveled with him and provided continuous care, though it remains unclear whether the coach was present at the time of the incident.

The runway model had been outspoken about his mental‑health challenges, launching a “Mental Health Mondays” campaign on Instagram in November and urging open conversations about addiction and emotional well‑being.

Gerber’s sister, Kaia Gerbe, 25, is described by close sources as “insanely close” to her brother, and both parents, Cindy Crawford, 60, and Rande Gerber, 64, have expressed profound grief over the loss.

Authorities have not yet released a definitive autopsy report, and the investigation into the circumstances surrounding Gerber’s death continues.