'CSI': William Petersen returns as Gil Grissom (VIDEO)
Thursday’s episode of CSI marked the long-awaited return of William Petersen as Gil Grissom. Ken Tucker has already given you his take, but now you can watch the appearance below.
The fan favorite left the show in January 2009, and this marks his first appearance since his departure. And, oh, how good it is to come home.
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