Cool Change

After the Holly Gribbs shooting, Jim Brass is demoted to homicide and Grissom is made head of the graveyard shift. Catherine vows to solve Gribbs' murder and is irritated when Grissom brings in Sara Sidle from San Francisco to investigate Warrick's whereabouts the night Holly died. Grissom and Nick investigate the death of a 40 million dollar slot machine winner, who apparently committed suicide by jumping from a building.