The Los Angeles County Medical Examiner determined singer Aaron Carter died from drowning and the effects alprazolam and difluoroethane, according to a summary published on the coroner’s website Tuesday.

Alprazolam is the generic form of Xanax, while difluoroethane is found in refrigerants and aerosol sprays. Carter died on November 5 of last year at the age of 34.

A spokesperson for the Los Angeles County Sheriff’s Department told CNN at the time that they responded to a call for help at Carter’s Lancaster, California home, where a deceased person was found in a bathtub.