“I’m going to leave you, “ Mary Snow, 33, told her live-in lover, Louis Bordier. “I’m sorry, but I’ve found another man.”

Bordier, 32, a French leather worker who lived with Mary at her aunt’s home in Milstead Terrace, off the Old Kent Road in south-east London, was distraught. They had co-habited for 13 years, and although most of the time they had been arguing, they somehow always made it up.

At six o’clock in the morning of September 3rd, 1867, the day following her dramatic announcement, Mary staggered into her aunt’s bedroom covered in blood. Her throat had been cut, and she died a few hours later in hospital.

“I couldn’t bear to be apart from her,” sobbed Bordier.

At his Old Bailey trial it was proved that he had planned the murder, because he had written to his brother saying he intended to kill his girl friend, their children, and then himself. He was hanged on Tuesday, October 15th, 1867, the same day as John Wiggins (see above) outside Horsemonger Lane Prison.