Poison Vault: When Medicine Became Murder

A cup of tea on a November afternoon in Mayfair.A pellet the size of a pinhead on a London bridge.A bottle of medicine on a Chicago pharmacy shelf.A door handle in a cathedral town.Each time, the weapon was chemistry.Each time, the victim never saw it coming.THE POISON VAULT is a forensic journey through eight of the most lethal substances in human history — arsenic, cyanide, strychnine, ricin, ca...