American pop star Aaron Carter accidentally drowned in his bathtub because of the medication he had taken, according to the doctor's report.
Carter, 34, the younger brother of Backstreet Boys' Nick Carter, was found dead at his home in Lancaster, California, on November 5.
An autopsy has now revealed that his death was caused by suffocation due to the effects of the sedatives he had taken and the gas he had inhaled.
Alprazolam, often sold under the brand name Xanax, was found in his system.
The compressed gas difluoroethane was also discovered. The report describes it as a "gas commonly used as a spray in air cleaning" which "may cause feelings of euphoria when inhaled".
Carter was last seen alive when police visited his home in the early hours of November 4, the Associated Press reports. They were searching him after he was seen with an inhaler in an Instagram Live video, according to a police report included in the autopsy findings.
Carter had asked the officers to leave. Later that day, he missed an appointment with a drug counselor, the police report said.
The next day, a woman described as a housewife visited Carter's home to offer him coffee. When there was no answer, she went inside to find him lying in a Jacuzzi-style tub still running.
Doctors pronounced him dead at the scene.
Carter began his career opening for the Backstreet Boys on a number of tours and concerts.
During the late 90s and early 2000s he sold millions of copies of his four albums, the first of which was when he was just nine years old.
His second album, Aaron's Party (Come Get It), was released in 2000 and went triple platinum. After the album he supported Britney Spears on the Oops!… I Did It Again tour.
As she got older, Carter moved into rap and also appeared in Broadway musicals and the American television show Dancing With The Stars.
He faced a series of struggles, checking into rehab several times and filing for bankruptcy in 2013 over millions of dollars in debt, most of which were tax-related.
He also had several run-ins with authorities for drug possession and reckless driving.
Carter's son Prince was born in 2021 and, according to The Hollywood Reporter, he visited rehab last year in an attempt to win custody of him.
Many paid tribute to Carter after his death, including Paris Hilton, Tyler Hilton and Hilary Duff, and the bands New Kids on the Block and *NSYNC.