Todor Zhivkov to 1988, Bulgaria won an unprecedented 153 Olympic medals and numerous European and world competitions in sports as diverse as volleyball, rhythmic gymnastics and wrestling. Dissent was punished under Zhivkov's rule. The CSS was a feared tool of control, and overt opposition largely stayed underground until the late 1980s. In 1978, the Bulgarian dissident Georgi Markov was assassinated in London by an agent who stabbed him with an umbrella tip which implanted a very small ricin ball. According to former KGB general Oleg Kalugin, this was requested by Zhivkov and either performed by the KGB or it assisted the CSS;
Killer Cop released in Italy on March 27, 1975 where it was distributed by Prouzioni Atlas consorziate (P.A.C.). It grossed 854,798,250 Italian lire. "Killer Cop" has been released on DVD in Italy by Cecchi Gori with a running time of 92 minutes and 58 seconds. Killer Cop Killer Cop () is a 1975 Italian poliziottesco-crime film directed in 1975 by Luciano Ercoli. The film's plot reprises the very real Piazza Fontana bombing which happened in Milan in 1969. The gun in the umbrella used in the movie is similar to a Bulgarian umbrella used at London in 1978 to kill Bulgarian dissident