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Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection.
Lavy stated that he purchased the ricin to poison coyotes on his farm in Arkansas and keep them away from his chickens. Lavy was stopped at the Beaver Creek border crossing by Canadian custom agents who found, along with the 130 grams of ricin, $89,000, a knife, four guns, and 20,000 rounds of ammunition. [4] [5]
The toxicity of raw castor beans is due to the presence of ricin. Although the lethal dose in adults is considered to be four to eight seeds, reports of actual poisoning are relatively rare. [21] According to the Guinness World Records, this is the world's most poisonous common plant. [22]
Axel Rudakubana, 18, will appear at Westminster Magistrates’ Court by video link on Wednesday charged with production of a biological toxin called ricin
Ricin has been used in several plots to poison political opponents over the last few decades. Vane had previously been kicked out of the Virginia Kekoas, a self-described “prepper militia.”
No ricin present at scene of attack, police say. The 18-year-old has also been charged with producing ricin, a poison found in castor beans, contrary to section one of the Biological Weapons Act 1984.
On April 17, 2013, FBI agents detained a Corinth, Mississippi, man on suspicion of mailing the ricin-laced letters. [4] [5] [10] All charges were dropped however, and he was released on April 23, 2013. Federal investigators reported that they could find no evidence linking him to the letters. [11]
A letter addressed to the president that was intercepted before it reached the White House tested positive for the deadly poison ricin, officials said.