Adrian Monk: They are all here.
Captain Stottlemeyer: What's all here?
Adrian Monk: The pill bottles. See, here is the inventory. 58 bottles. And 58 bottles. He didn't take anything.
Captain Stottlemeyer: So it was a setup. He wants us to think junkie.
Adrian Monk: Looks like the killer stuck around for awhile and used the computer.
Natalie: How do you know?
Adrian Monk: The mouse is on the left side, but Dr. Nash is right handed.
Lieutenant Disher: How do you know that?
Adrian Monk: He was right handed 12 years ago.