Best known as Gil Grissom in the popular series CSI: Crime Scene Investigation, William Petersen has a long and varied career in film, television, and theater. A native of Evanston, he's back in Chicago and currently starring in Dublin Carol at the Steppenwolf. Last month,‚ Peterson‚ was at the Chicago History Museum for their Chicago Treasures series. The Golden Globe-nominated actor and producer of CSI discussed how the city has shaped his career and life, interviewed by Chicago Tribune columnist, Rick Kogan. The event was recorded by Chicago Public Radio as part of Chicago Amplified - over 1,000 people have already listened since it posted last week!