Then, in the late spring, Broadbent was informed of a police investigation into the deaths of a series of prostitutes in the Stepney and Lambeth areas of London that began in October 1891 and continued until April 1892. One of the victims was Matilda Clover, who had been classified as having died of natural causes, but the letter from the blackmailer to Broadbent gave details showing the woman had been poisoned. An arrest was made in June 1892 of Dr. Thomas Neill Cream for blackmailing another physician named Harper. Subsequently this was changed to a charge of murder for the poisoning of Matilda Clover. The trial of the defendant occurred in October 1892, with the charges including the attempted blackmail of Broadbent, and Broadbent's appearance as a witness. Cream was found guilty and sentenced to death, being hanged in November 1892.