[McMillan reaches Sam, the Coroner, after a new autopsy has been done on Tom Ryan]
Coroner: Well Commissioner, when you're right, you're right. We blew this one.
Commissioner Stewart McMillan: Nobody's perfect, Sam.
Coroner: I am, usually.
Commissioner Stewart McMillan: Usually perfect? That's like saying slightly pregnant. What did you find?
Coroner: Well, like you speculated, this guy was poisoned. We didn't find it.
Commissioner Stewart McMillan: You didn't find it because you weren't looking for it.
Coroner: The man has two bullet holes in his back, it never occured to us to look for poison. How many times do you have to kill a guy?
Commissioner Stewart McMillan: What kind of poison?
Coroner: Poison mushrooms. Extremely toxic, even in minute amounts it's always fatal.
Commissioner Stewart McMillan: Slow or fast-acting?
Coroner: Slow. He could have ingested it, went to bed, and died in his sleep. This particular poison requires very specific tests.
Commissioner Stewart McMillan: Yeah. His dinner was poisoned.
Coroner: Must be. How'd you find it?
Commissioner Stewart McMillan: Scientific deduction, Sam. My wife talked to a short-order cook whose dog was poisoned the same night he was.
Coroner: You think the killer was the cook?
Commissioner Stewart McMillan: No, I figured he fed his dog food scraps from the hotel every night, and that the poison that killed the dog was the same poison that killed Tom Ryan.
[the office phone rings, and it is a call for McMillan, who gets very bad news about a suspect the department has been tailing]
Coroner: [after McMillan hangs up] Anyway, Comissioner, if you find the guy who served Tom Ryan his dinner, you've found your killer.
Commissioner Stewart McMillan: Not necessarily. The guy who served Tom Ryan his dinner is in County General. They found him shot three times in the chest.