From medicine to murder: Ricin and the rolled umbrella ; Hyoscine and the murder of Belle Elmore (Mrs. Crippen) ; Atropine and Mrs. Agutter's gin and tonic ; Diamorphine and the Dr. Jekyll of Hyde ; Adrenaline and the near-perfect murders of Kristen Gilbert
So simple, so useful, so deadly: Chloroform and Mrs. Bartlett ; Life & death & CO : carbon monioxide and the home-made gas chamber ; Cyanide and the death on the nile ; Paraquat and the poisoned gravy ; Polonium and the poisoning of Alexander Litvinenko.