Bryar was My Chemical Romance’s longest serving drummer, playing with the band from 2004 to 2010, during which time they released their hit album “The Black Parade” in 2006.

One of the drummer's final X post mentioned Linkin Park's late lead singer Chester Bennington, who died by suicide in 2017.

Although newer My Chemical Romance fans may be more familiar with the group’s current drummer, Jarrod Alexander, Bryar played a musical part in the group’s rise in popularity. Alongside the band’s original members and lead vocalist Gerard Way, Bob Bryar played on MCR’s breakoutout album, The Black Parade.