Profile of Jack the Ripper
The Crime and Crime-Scene Analysis
All the crime scenes were outdoors, with the exception of Mary Kelly's. By murdering his victims outdoors in a well-populated area, the offender increased his risk for detection and apprehension. To minimize that risk, he killed his victims in a quick blitz-like attack and immediately fled the scene after each murder. Based on the nature of the attacks, the offender would have been substantially stained by the victim's blood. While he appeared to control his victims, we do not know whether he cut himself during any of these attacks. Such accidental self-inflicted wounds are common in the type of disorganized, frenzied, stabbing/slashing attack employed by the offender. In all likelihood, he would have returned to his nearby home to change out of his bloody clothes and clean up after each of these murders. That indicates that he probably did not perceive his attacks as risky: he could get away quickly and hide.
The core behavior, a quick kill with post mortem evisceration, can be seen developing across these murders. The first possible victim, Martha Tabram, although stabbed 39 times, was not eviscerated. Thus, she could have been either his first attempt, or not in the picture at all. I do believe that he started with Tabram, but that although he fantasized about evisceration and wanted to do so, he did not because he was either hesitant to do so or may have feared being interrupted.
With Kelly, it seems that he accomplished his full agenda, but this would not have satiated him. If he stopped killing, it was because he was arrested for something else, had left Whitechapel, or had sickened or died in some manner. I think it is least likely that the murders stopped because he moved from the area.