Jack was a dock worker disguising himself as a wealthy socialite. He had short blond hair, green eyes, and donned a maroon suit with a grey dress shirt and striped maroon tie at the time of his death.
Jack's body was found floating in a chocolate river, with his mouth stuffed with chocolates. Per Dick, the victim died after being force-fed chocolate, as his esophagus was full of it, while he was intoxicated with cough syrup and champagne. Dick also found sugary ligature marks in Jack's wrists, which meant the killer tied him. Per the coroner, the killer also leaned on Jack with their own body pressure to subdue him, leaving marks that led Dick to deduce that the killer was left-handed.
In the factory's production line, Isaac and the player found a strange machine known as the Chocolometer 1000. Its mechanical claw contained (per Viola) the victim's blood, which meant that the machine was the murder weapon. Viola also found traces of mint julep on the claw, meaning the killer drank mint julep.
Killer and motives
The killer turned out to be a socialite named Violetta Blue.
After denying involvement, Violetta admitted to the crime. Violetta could not stand when Jack started dating Verushka Coldwell, whom she loved. Feeling betrayed, Violetta tied Jack with licorice candies and used Rockley's Chocolometer 1000 to stuff him to death with chocolates. Judge Takakura sentenced her to 15 years in jail without parole.
- Sweet Revenge (Case #9 of Mysteries of the Past)
- Let Her Eat Cake (Case #10 of Mysteries of the Past; mentioned)
- That Sinking Feeling (Case #11 of Mysteries of the Past; mentioned)
- Behind the Mask (Case #12 of Mysteries of the Past; mentioned on a clue)
- Get Off Your High Horse (Case #40 of Mysteries of the Past; mentioned)
- A Study in Pink (Case #52 of Mysteries of the Past; mentioned)