CSI: NY: Season 4, Episode 17

4 - 17: Like Water for Murder

The CSI team inspects a twisted trail of evidence when a saleswoman washes up on Rockaway Beach along with a dead shark. The team realizes they are dealing with a serial killer when a second body washes up on the shore. Mac discovers the killer is a taxi driver and he is killing his victims by carbon monoxide poisoning from inside his cab. The Crime Lab is evaluated.