Former My Chemical Romance drummer Bob Bryar's cause of death has reportedly been ruled "undetermined" after he was found dead in November 2024 at the age of 44.

Bob Bryar, former drummer for My Chemical Romance, had tanks of nitrous oxide next to him when he was found dead, according to reports. TMZ reported that Bryar's autopsy report — obtained from the Bedford County Medical Examiner in Tennessee — included unsettling details about the drummer's death at 44 in November.

Bob Bryar, who served as the drummer of My Chemical Romance in the 2000s, died in November 2024. After his death, his former bandmates, including frontman Gerard Way, Mikey Way and Frank Iero, released a statement mourning the loss of their friend.