CSI: Crime Scene Investigation Season 8 Episode 14

Grissom and the CSI team deal with what appears to be two related deaths. In the first, a young woman is found dead in an apartment, the victim of multiple gunshot wounds. When they find blood dripping through a hole in the ceiling, they find another victim in the upstairs apartment. When the autopsy reveals that different guns killed the two victims, the only connection they have left is that a man who has been in jail for several months rented both apartments.