The fact that he couldn't be identified and the science of the time in criminal investigations was very basic. The use of fingerprinting was just getting started and there was no DNA samples or knowledge about it. The police may have also missed evidence that wouldn't be missed today and there was little knowledge about the psychology of a person who murders people like Jack did. Criminal science was just starting to develop so all of this helped a man like Jack escape.
It is probable that the dark smoky conditions of the East End helped Jack the Ripper escape from the crime scenes.
To the best of my knowledge there has never been a woman undertaker that was an accomplice to Jack The Ripper. It is more common for JTR type killers to work alone.
His ability to blend in and his knowledge of the East End streets.
Nobody knows who Jack the Ripper was.
jack the ripper made his crimes in whitechapel London
toon into casebook jack the ripper and you will get a lot of information.
He's not. Jack The Ripper was never identified.
No one was never apprehended as the Jack the ripper.
Jack the ripper is dead his identity remains unknown to this day.
Jack the ripper according to records he existed
Jack The Ripper was never identified or caught.
Since Jack The Ripper was never caught there is no way to discern his eye color. Short of a positive ID, we can only guess what the Ripper looked like.