Greg is doing his final proficiency test and he has a case to solve. Ironically, he investigates the death of a Sherlock Holmes- wannabe, obsessive to the point of recreating the great detective's living room in his home. He died from a close-range gunshot wound. The murder weapon is not found in the scene although everything other pieces of evidence suggest that it was a suicide. Working under Catherine, Nick and Warrick works on a case of a dead guy found in his car which veered off the highway. Dr. Robbins cannot find the cause of death and it is left to the two detectives to solve the mystery. Written by
Did You Know?
The method in which the murder weapon was concealed closely parallels the Holmes story "Thor Bridge" by Sir Arthur Conan Doyle
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The wannabes are portraying Sherlock Holmes, Dr. Watson, Irene Adler, and Professor Moriarty. These four characters are obviously meant to reference the old "221B Baker Street" board (and, later, computer) game. However, although Sherlock Holmes, Irene Adler, and Dr. Watson were characters in the game, Professor Moriarty wasn't. The fourth character in the game was the redoubtable Inspector Lestrade. The mistake was undoubtedly due to the fact that Moriarty appears on the cover of the computer game version alongside Irene Adler, Holmes and Watson. See more
[to Brass in her Irene Adler voice about the victim, a Sherlock Holmes impersonator
You see, detective, Denny would have wanted his murder to be the perfect puzzle. A mystery worthy of the master.