Musician and producer best known as the drummer for punk rock band Rise Against, the group known for songs including "Satellite" and "Savior."
He briefly played with Pinhead Circus and can be heard on their second album, 1999's Everything Else Is Just a Far Gone Conclusion.
He is a strict vegetarian and PETA supporter.
His first drum set was given to him when he was only nine by his grandfather, a Chicago jazz musician. He and his wife Tara have a son and a daughter.
He was influenced by Dave Lombardo.