Complex sentence: The record was produced by long-time collaborator John Goodmanson, who came from the same background as the band--he attended college in Olympia, Washington--and recorded with most of the acts signed to Kill Rock Stars.
Split into simpler sentences: The record was produced by long-time collaborator John Goodmanson. Goodmanson came from the same background as the band--he attended college in Olympia, Washington--and recorded with most of the acts signed to Kill Rock Stars.