While the medical examiner suspected an "intentional or accidental overdose," because of the state of Bryar's body, his cause and manner of death were "best classified as undetermined," TMZ reported from the autopsy details. A rep for the late artist could not be reached by PEOPLE for comment.

My Chemical Romance drummer Bob Bryar’s cause of death has been ruled as undetermined, according to an autopsy report. The rocker, 44, was found dead in his home in November 2024 and it’s now been reported by TMZ papers probing what was behind his passing showed he was discovered next to three large canisters of nitrous oxide.