Rhythm guitarist and backup singer for the band My Chemical Romance alongside Gerard Way, Bob Bryar, Mikey Way and Ray Toro. He also became a member of Leathermouth, a post-hardcore group, and Death Spells.
He has been a part of two top ten albums released by My Chemical Romance with The Black Parade in 2006 and Danger Days: The True Lives of Fabulous Killjoys.
He wrote the song "This Song is a Curse" for Tim Burton's movie Frankenweenie.
He dropped out of Rutgers University to pursue a music career.
He married Jamia Nestor in 2007 and together they had three children: Miles, Cherry and Lily.