Quote from Captain Stottlemeyer in Mr. Monk and the Really, Really Dead Guy
Agent Keao: Here's an updated profile. Suffocation indicates the assault was personal, motivated by repressed anger. Choice of street performer as victim may be significant. The suspect's father was probably a failed musician. Agent Thorpe: So he hates street musicians! Captain Stottlemeyer: Who doesn't? Agent Thorpe: We can nail this bastard. Sweep the city. I want all musicians off the street, except one. [Everyone looks to Disher]