The Resident Patient

"The Adventure of the Resident Patient", one of the 56 Sherlock Holmes short stories written by Sir Arthur Conan Doyle, is one of 12 stories in the cycle collected as The Memoirs of Sherlock Holmes. Doyle ranked "The Adventure of the Resident Patient" eighteenth in a list of his nineteen favourite Sherlock Holmes stories.
...A little digging at police headquarters brings up the rest of the truth. All four of the men were once members of a criminal gang that robbed banks. Blessington's real name was Sutton, and the other three, two of whom played the Russians, were Biddle, Hayward, and Moffat. After robbing the Worthington Bank of £7,000 in 1875, Blessington (or Sutton) had turned informer, and as a result, another gang member, Cartwright, had been hanged for murdering the caretaker, and the other three had each been given 15 years in prison. Blessington's "paranoia" was indeed a very real fear, caused by news of their early release, not by some burglary, as he claimed. The murderers chose hanging as their form of execution to avenge Cartwright...
Famous works of the author Arthur Conan Doyle: A Study in Scarlet, The Sign of the Four, The Adventures of Sherlock Holmes, The Memoirs of Sherlock Holmes, The Hound of the Baskervilles, The Return of Sherlock Holmes, The Valley of Fear, His Last Bow, The Case-Book of Sherlock Holmes, Stories of Sherlock Holmes, The Lost World.