Monk, Season 5

[Randy is at his desk. He notices something and rushes into Stottlemeyer's office]

Lt. Disher:
Captain? The lapel pin. I just remembered where I saw it.

Capt. Stottlemeyer:
When?

Lt. Disher:
Just now at my desk.

Capt. Stottlemeyer:
No I mean... tell me about the pin, Randy.

Lt. Disher:
Monk. He's been wearing the same pin all week for his 25th college reunion.

Capt. Stottlemeyer:
I think you're right. Did the victim go to Berkeley?

Lt. Disher:
No, she worked there. She was a nurse at the university clinic for, like, twenty years.

Capt. Stottlemeyer:
But she didn't graduate, so this isn't her pin.

Lt. Disher:
The killer.

Capt. Stottlemeyer:
[with realization] It fell off the killer... which means the killer is at the reunion... with Monk?