Ricin the attack on Georgi Markov another Bulgarian defector, Vladimir Kostov, survived a similar attack. Kostov was standing on an escalator of the Paris metro when he felt a sting in his lower back above the belt of his trousers. He developed a fever, but recovered. After Markov's death the wound on Kostov's back was examined and a ricin-laced pellet identical to the one used against Markov was removed. Several terrorists and terrorist groups have experimented with ricin and caused several incidents of the poisons being mailed to U.S. politicians. For example, on May 29, 2013 two anonymous letters sent to
Waterloo, London Lambeth had significantly increased. After the opening of Waterloo railway station in 1848 via the Nine Elms to Waterloo Viaduct the locality around the station and Lower Marsh became known as Waterloo. The boundary of the ecclesiastical parish of St John Waterloo established in 1824 was formed by the River Thames in the north and west, approximated Westminster Bridge Road in the south, and followed the boundary with Southwark in the east. The public library in Waterloo was constructed in 1893. It remained open until the early 1960s when it was vacated due to its poor condition. The building now