The terrible deeds of George L. Shaftesbury : who killed his own mother and sister : and fled to New York City, where he was joined by the female murderer, Marie Lavine, whom he detected in the act of dragging to the river the body of a man whom she had murdered in one of the dens of Walnut Street, in that city ; and they, after passing through the most dark and unparalleled career of crime, were finally both executed in Quebec, June 7, 1850, for the murder of Lord Amel and family / [by J. Elligen].