Robert Donston Stephenson was a British citizen, living in London in 1888.

During the Terror caused by Jack the Ripper's Whitechapel murders, Stephenson wrote a strange newspaper article, in which he claimed that black magic had been the motive for the murders. Shortly after the article was published, Stephenson disappeared.

Having signed himself into a hospital shortly before the murders started, the Metropolitan Police Service considered Stephenson a viable suspect, seeing as he had been able to freely leave the hospital whenever he wanted.

Inspector Frederick Abberline tasked the Assassin Evie Frye with finding Stephenson, and safely escorting him so that he could be interrogated.