How it works: Ricin can kill you if it is inhaled, injected, or ingested. It is most potent when inhaled or injected into the body. Bulgarian writer Geogi Markov was murdered by the Bulgarian ...

An Arkansas tree cutter who made jars of the lethal poison ricin on his rural property was ... like symptoms within the first few hours that can worsen into blue skin, respiratory failure ...

After listening to the phone call, FBI agents contacted the person whom Clampit had directed and found “a jar containing processed ricin” in a trash can, according to prosecutors. A grand jury ...