Adrian Monk: That's from Linda Hayden's coat. Oh, my God.
Natalie: Whoa, whoa, whoa. Do you think she could have been involved with the fire? Maybe that's why she was killed.
Adrian Monk: There's gotta be a connection. But I don't see it. What happened here was an accident. Nobody was hurt. Nobody even knew she caused it. [pulls out whistle]
Natalie: Please don't.
Adrian Monk: It helps me think.
Natalie: No, no, no. [blows Monk's whistle]
Adrian Monk: [blows second whistle] Backup. Gotta be a connection. Just gotta be a connection.