1. The Doctor: Francis Tumblety

Francis Tumblety was a quack doctor of Canadian origin who was known to traverse to the United Kingdom to ply his wares. A salesman
par excellence Tumblety was flamboyant and made many esoteric connections- including having a famous dinner with Bram Stoker. Tumblety was arrested right after the Kelly murder, after which he was released. What makes him suspicious is that he then proceeded to flee with all due speed to New York and then basically disappeared off the map completely. This suspicion is backed up by the so-called Littlechild Letter of 1913, in which Tumblety is put forward as a major suspect. Having said that, there is little to connect Tumblety to the crimes themselves, nor is there any discernible motive. Furthermore, there is some doubt whether Tumblety was actually arrested in relation to the Ripper murders, or due to something else entirely. Finally it would be doubtful that someone of Tumblety's size and dress sense may have stood out in the Whitechapel citizenry. There is little doubt that the hunt for the Ripper continues to this day and engrosses more and more people as they attempt to discern something new about perhaps the most infamous serial killer in history. Though the murders only took place during a 3 month period (not including the disputed victims of Francis Coles and Alice McKenzie), they have come to dominate so much of our perspective of Victorian London and beyond.