Historical Events  People
The Blackout Ripper

There was a serial killer in London during the WW2 blackouts

MMDE: The Blackout Ripper is well known

Current: The Blackout Ripper is not well known

Gordon Cummings murdered 6 women in a style very similar to Jack the Ripper in London during the blackouts of the second world war. He was hanged for his crimes and is suspected of carrying out more which were never solved.

The only problem is - no-one seems to have heard of him. Go on, ask your family, friends and colleagues about him, and the chances are they won't have heard of him either.

When this happens, i.e. something which would be expected to be more widely known but isn't, some are pointing to a kind of Mandela Effect in reverse, where whole set of events suddenly popped into our timeline. Research today shows they were always there, as they would be, yet no-one can remember them. 

Gordon Cummings

The Blackout Ripper was caught because he was a soldier, and left a gas mask with his army number stamped on it at the scene of one of his crimes.