When a deaf man is run over by a car, the early evidence suggests that this is just another case of vehicular homicide. But the CSI unit quickly determines that the victim was actually dead before the accident occurred. Making things difficult is the obstructive attitude of the school in which the dead man was enrolled. And in another case, five customers of an upscale coffee shop are slain in an apparent mob hit. ~ Hal Erickson, Rovi