Ricin immunogenic in mice, rabbits, and humans. It has completed two successful clinical trials. Ricin has been involved in a number of incidents. In 1978, the Bulgarian dissident Georgi Markov was assassinated by Bulgarian secret police who surreptitiously shot him on a London street with a modified umbrella using compressed gas to fire a tiny pellet contaminated with ricin into his leg. He died in a hospital a few days later and his body was passed to a special poison branch of the British Ministry of Defence (MOD) that discovered the pellet during an autopsy. The prime suspects were the Bulgarian
Poisoned Dreams Poisoned Dreams Poisoned Dreams: A True Story of Murder, Money and Family Secrets is a 1993 true crime book about the murder of Nancy Lyon, written by A. W. Gray and published by Dutton. This was the first true crime book written by Gray, who previously wrote mystery novels. Lyon died of poisoning. Her ex-husband, Richard Lyon, was convicted of killing her and sentenced to life in prison. Gray believes that Lyon was wrongfully convicted. "Kirkus Reviews" stated that the book had "needless suspense and melodrama". "Publishers Weekly" stated that "his venture into writing nonfiction is less than successful" even