Another one from the 'Ransom': Leslie: "Whoever it was killed my husband, for whatever reason, I want him found." Lt.: "I was hoping you'd say that."
And of course her line at the end, "You're very lucky," followed by "No - you're very smart." It's great how even at a moment like that, she's able to admit it.
One strong moment I've always liked is the end of the "Tommy" scene in PRESCRIPTION: MURDER - "I already asked him."