CSI: Crime Scene Investigation: Season 10, Episode 15

10 - 15:

The body of a 14-year-old boy is discovered in a field and the investigation reveals the victim has blood under his fingernails that matches a convicted killer who is in prison for murdering his wife. The incarcerated man demands to be released, claiming that someone else with identical blood killed his wife, but Ray believes the prisoner may have had the blood planted at the scene to try to gain his freedom. Guest Stars