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
The Bridge of Sighs (poem) (Watts Gallery, Compton, Surrey). The poem was also illustrated in a bas-relief on Hood's tomb. Former Procul Harum guitarist Robin Trower released a certified Gold album of the same name with the title track song "Bridge of Sighs" in 1974 The Bridge of Sighs (poem) "The Bridge of Sighs" is a famous poem of 1844 by Thomas Hood concerning the suicide of a homeless young woman who threw herself from Waterloo Bridge in London. Although Thomas Hood (1799–1845) is usually regarded as a humorous poet, towards the end of his life, when he was on his sick bed, he wrote