He’s not so naïve as to believe that every homicide is solved, but more often than not, murder does out. Something (a certain wifely body in a certain abandoned gravel pit, for instance) comes to light. It’s as if there’s a fumble-fingered but powerful universal force at work, always trying to put wrong things right. The detectives assigned to a murder case read reports, interview witnesses, work the phones, study forensic evidence . . . and wait for that force to do its job. When it does (if it does), a path appears. It often leads straight to the doer, the sort of person Mr. Mercedes refers to in his letters as a perk.
