Name of poison used by assassins?

Answer 1

There are as many types of poisons used as, pretty much, there are assassins to use them. Different poisons cause different reactions and different types of death. Some are very fast-acting, some are slow, or even cumulative. Some are virtually untraceable while others could not be hidden even if one tried. Many state-sponsored assassins seem to like to use ricin. Ricin is a poison found naturally in castor beans, which can be made from the waste material left over from processing said beans. It can be in the form of a powder, a mist, or a pellet, or it can be dissolved in water or weak acid; and it is a stable substance under normal conditions, but can be inactivated by heat above 80 degrees Centigrade.

• Ricin works by getting inside the cells of a person's body and preventing the cells from making the proteins they need. Without the proteins, cells die. Eventually this is harmful to the whole body, and death may occur.
• Effects of ricin poisoning depend on whether ricin was inhaled, ingested, or injected.

But as mentioned above, the poisons used by assassins run the gamut.

A 2006 case in the UK concerned the assassination of Alexander Litvinenko who was given a lethal dose of radioactive polonium-210, possibly passed to him in aerosol form sprayed directly onto his food. Litvinenko, a former KGB agent, had been granted asylum in the UK in 2000 after citing persecution in Russia. Shortly before his death he issued a statement accusing then-President of Russia Vladimir Putin of involvement in his assassination. President Putin denies he had any part in Litvinenko's death.