The autopsy has now revealed that Carter’s death was caused by drowning and the effects of sedatives he’d taken and difluoroethane he’d inhaled.
The sedative alprazolam, often sold under the brand name Xanax, was found in his system, as was the compressed gas difluoroethane, which the report says is “a gas commonly used as a propellant in air spray cleaners,” which “can induce feelings of euphoria when inhaled”.
The two substances made him incapacitated in the tub, and caused the drowning, the report said.
The autopsy was performed the day after Carter's death, but the results were withheld for toxicology tests, which often take months.