What really blows my mind is that everyone involved in the crime ie. any withenesses, the police, loved ones .. have all been dead for such a long, long time and even if new evidence comes to light and the case is solved nobody can be interviewed and nobody from that time who was heavily involved and dedicated their lives to solving the case will be around to celebrate.
I wonder if the current day families of the victims are heavily invested in it? I mean they never would have met the deceased obviously, but they are still their flesh and blood. If for example it was your great great great grandmother that was murdered by Jack the Ripper, how would you feel?
Yep, the approach taken, to attempt to eliminate Lechmere as a suspect, left him right in the frame.
It beats me how he was missed in the first place or in the century plus since. He was there, he clearly lied about the circumstances and timings and a witness exposed his presence at the scene of the crime and contradicted his version of events. Luckily for Lechmere he was able to adopt the witness as an alibi and get away without being properly questioned.
I'm not completely saying 'Will never be solved - too long ago - etc). Certainky with current technologies it appears we can't make much more progress.
But go back 100 years and consider some of the scientific breakthroughs that we use today for investigation into crimes, historical research etc:
DNA and all the information available re family connections
Carbon (and other) radioactive dating
If you told someone about those a century ago, they would have laughed at you and said 'Stick to fairytales'. Just because we cant conceive anything that could solve the crime, doesn't mean it's not available. Maybe there is some analysis we can do on old photographs, or the 'Dear Boss' letter which could help.
It would be a fantastic story if it could finally be 100% confirmed one way or the other. But Jack is such a big industry, it's probably better it stays a mystery.