Or duzit?
Frogwares' investigation narrative Sherlock Holmes: Crimes & Punishments released this trailer, which seems to rather clearly show a homicide and its perpetrator. There's likely much more than meets the eye, though, in this episode, which will be one of six in the game's forensic tour of Victorian England.
Sherlock Holmes: Crimes & Punishments will launch in September for PlayStation 3, PlayStation 4, Windows PC, Xbox 360 and Xbox One. For more, see Polygon's hands-on with the game from Gamescom 2013