CSI: CRIME scene investigation

Season 3 - Episode 6 - The Execution of Catherine Willows

Written By Carol Mendelsohn & Elizabeth Devine
Directed by Ken Fink

When Catherine was a rookie, the evidence she collected against serial killer John Mathers helped to put him on death row for the murder of three Western Las Vegas University coeds. But now his defense wants DNA evidence re-examined with methods that were not available to him then. Catherine finds herself drawn back into the case, questioning her findings – and questioning how she feels about the fact a man whom a jury found guilty and sentenced to death may well be innocent.

Meanwhile, Grissom and the rest of the team investigate the disappearance of responsible young woman who shared her life with an alcoholic father. When the CSIs arrive on the scene, Mitch Reston cannot explain what happened to his daughter Debbie anymore than he can explain why he is found wearing a blood-drenched shirt in the house they shared.

But when the body of Debbie Reston is discovered on the WLVU campus, in much the same condition as John Mathers’ victims, the two cases collide, putting the CSIs in the hunt to find a copycat serial killer, or, if Mathers is innocent, the murderer who should have been behind bars in the first place.