Wartime Crime - Season 1 Episode 5 -

In Nazi Germany and Britain, the blackouts were a necessity for defending lives and property from enemy bombing but proved a useful tool for predatory criminals, allowing two serial killers who used the absolute darkness to prey upon victims. Paul Ogorzow was the S-Bahn Murderer in Berlin, Germany in 1941-1942. Gordon Cummins was the Blackout Ripper in London, England in 1942.