His book bounces back from Jack the Ripper to Geoffrey Chaucer by way of Elizabethan theatre, taking in asides on the mishmash of contemporary architecture and the idiosyncrasies of passers-by.
Although he was actually in prison at the time of some of the murders, so it really couldn't have been him, and we still don't know exactly who Jack the Ripper is.
There were also questions about Albert's psychological well-being, issues which have led to outlandish claims that Albert could have been the infamous Jack the Ripper.