In truth, Molly's symptoms were entirely due to the thallium Graham had been adding to her food and drink. Confronted with this appalling testimony, the family felt Graham was mentally ill and would only be released if no longer a danger. He squirted Harpic toilet cleaner into the staff tea urn. 'Broadmoor,' Graham said. All that remains is one, enduring mystery – as fitting an end to the life of Graham Young as anything dreamed up by Agatha Christie.

Source: Daily Mail July 24, 2021 21:51 UTC