Ricin secret police: Georgi Markov had defected from Bulgaria some years previously and had subsequently written books and made radio broadcasts that were highly critical of the Bulgarian communist regime. However, it was believed at the time that Bulgaria would not have been able to produce the pellet, and it was also believed that the KGB had supplied it. The KGB denied any involvement, although high-profile KGB defectors Oleg Kalugin and Oleg Gordievsky have since confirmed the KGB's involvement. Earlier, Soviet dissident Aleksandr Solzhenitsyn also suffered (but survived) ricin-like symptoms after an encounter in 1971 with KGB agents. Ten days before
London Waterloo station was demolished and replaced with a dedicated building in 1902, as part of the reconstruction of Waterloo in the early 20th century. Traffic and passengers to Waterloo increased throughout the century, and Waterloo was extended in an ad-hoc manner to accommodate this. In 1860, new platforms were added on the northwest side of the station; these were known as the Windsor Station after its intended destination. An additional dock siding of the main station opened on 17 March 1869. A link to the South Eastern Railway (SER) line from to opened in July 1865. It was diverted from London Bridge