SS guard Charlotte S trained her Alsatian to bite at inmates ' private parts . Gisela S locked up to 15 prisoners in a tiny 'standing cell ' for days . Gertrud Elli Senff revelled in the power of playing 'God ' with people 's lives . She was known as " The Angel of Death " and she would often be seen walking around town dressed like an angel, carrying out executions on those who were deemed unfit or dangerous enough to die by lethal But all three women - now frail and in their 90s - will never face justice .
SS guard Charlotte S trained her Alsatian to bite at inmates ' private parts . Gisela S locked up to 15 prisoners in a tiny 'standing cell ' for days . Gertrud Elli Senff revelled in the power of playing 'God ' with people 's lives . She picked who lived and who was sent to the gas chambers to die . But all three women - now frail and in their 90s - will never face justice .