Deep Freeze - S6-E5
Trivia: One the episode's murder suspects is played by a then-relatively unknown Stana Katic. Two years later, she began playing the opposite side of the law, homicide detective Kate Beckett, on Castle, the role for which she has since become most famous.
Answer: Earlier in the episode, Horatio tells Mac that Penrod was seen in Tribeca getting his leg set, only to bolt when he learned a nurse wised up the cops. Caine and the NYPD probably got Penrod's address from the hospital.
Cubs Fan ★