Captain Stottlemeyer: What do you got?
Adrian Monk: Trevor McDowell.
Captain Stottlemeyer: No. He was running the marathon. It checked out.
Adrian Monk: I don't know how he did it, but he's the guy. I'll tell you why. Because Gwen was killed first, then she was thrown off the balcony. That's the key. Why would the killer draw attention to himself? There's only one reason: To establish the exact time of death. He wanted everyone to know precisely when she died. Why? Because he had an alibi. An airtight alibi.