Albert Fish was a frail, grey-haired man with the polite air of a kindly grandfather - but beneath that veneer lurked one of the most sadistic killers in American history.
Known as The Grey Man and The Brooklyn Vampire, Fish preyed on children across New York in the 1920s and 1930s.
He not only murdered, but mutilated and cannibalised them, leaving a trail of letters and confessions that shocked even seasoned detectives.
He claimed he had killed children 'in every state,' though only a handful of murders were definitively confirmed.
His most infamous crime was the abduction and killing of Grace Budd, who was only 10 years old.
