== "Modern Perspective" == 

 When I read the "Modern Perspective" section, I was expecting to read about what modern criminal profiles etc thought of Jack, instead the section simply states that modern forensic techniques etc. did not exist at the time. This is similar to going to an article about a dinosaur and saying "they didn't live in houses, because houses hadn't been invented". Isn't the information in this section somewhat obvious? I say it should either be removed, or rewrittin with actual analysis of Jack.  /