A teenager is found murdered on a construction site. Grissom, Sarah, and Warrick follow the lead of blood on a hammer. Nick, with an assist from Catherine, tries to find…

A teenager is found murdered on a construction site. Grissom, Sarah, and Warrick follow the lead of blood on a hammer. Nick, with an assist from Catherine, tries to find…

When a long time rival drops out of a boxing tournament,Joe finds himself matched up against Brian.But what starts out as a friendly competition gets decidedly unpleasant.