> In this case, copy cats of Jack the Ripper were trying to emulate his (her?) ideolect. So one expects the entire exercise to be hopeless and the conclusion ho

> In this case, copy cats of Jack the Ripper were trying to emulate his (her?) ideolect. So one expects the entire exercise to be hopeless and the conclusion holds no predictive value. The letters in question were sent before the first letter was published. How would a copycat know what to emulate before the first letter's publication? It was also found that the latter letters were not very good at copying the original author's style. This is all in the article.