Gavin Hamilton’s research shows that a toxin found in natural rubber might well have been the culprit in the 43 babies’ deaths at Toronto’s Hospital for Sick Children in 1980–81. In 1980-81, 43 babies died at Toronto’s Hospital for Sick Children from a supposed digoxin overdose. Serial murder was suspected, leading to the arrest of nurse Susan Nelles. In order to clear Nelles’s name, an investigation was launched to find an alternate explanation. No one on the Grange Royal Commission of...