I STILL like Druitt for it. Matched a description of a male coming out of Miter Square around the time Eddowes got whacked [and he was the spitting image of the Duke of Clarence]. Killed himself shortly after the Kelly homicide [last of the five credited to the Ripper].
Not "leather apron?" LOL!
I agree - also, he worked in the area, and previous to doing law, may have had medical training.