The identity of Jack the Ripper, history's first and most notorious serial killer has confounded experts for decades. Here at last may be the answer to this compelling mystery. A diary found in Liverpool is filled with clues that indentify its author as James Maybrick, a cotton merchant who died in 1889 of suspected arsenic poisoning. Although Maybrick's wife was accused of his murder, the diary indicates that his poisoning was probably the result of his own arsenic addiction, an addiction that contributed to a secret life in London – as Jack the Ripper! The diary is the subject of considerable controversy and a report questioning its authenticity is included here, along with a rebuttal to that report. Follow the detective work that overlays the diary with what is known about James Maybrick and Jack the Ripper and decide: Were they one and the same?