17+ Populer Photos of William Petersen. Petersen serves as director of bands and is in charge of all . Vegas," as he was on the original "csi." for his work on "csi, . This sequel to the crime sensation reunites viewers with popular characters gil grissom (william petersen) and sara sidle (jorja fox), . William petersen was appointed to the faculty of the university of south alabama in 2012. William petersen hospitalisé, épuisé par de longues heures de tournage.