John Walker is a fictional character portrayed by Joel Gretsch in the TV series CSI: Miami.
In the first episode they appeared in, titled Death Grip (season 2), they were 39 years old.
They appear in 1 episodes out of a total of 232 aired
Episodes1
Death Grip
episode S2.E4 october 2003A young girl is kidnapped from her bedroom in the dead of night, and when an arm shows up without the body attached Horatio must determine if it belongs to his victim or a new one.