He’s a painter not a killer!
Sickert was most certainly not the infamous killer. He may have been a tad bit obsessed with the case, but that doesn’t make him a murderer. Granted he did paint a few interesting subjects, there is no evidence to really point to Sickert other than a few works of SUBJECTIVE art. Cornwell’s so called “DNA” tests do not prove anything. Even if one believes that Sickert wrote a letter or two to the police that doesn’t make him a killer. It may make him a pathological liar, but it does not prove he killed anyone. Sickert was an important person during this time and he knew a lot of prominent people. I feel that someone as well known as Sickert would have been caught if he had attempted to go on a killing spree.