Dzerzhinsky visited Switzerland, where his fiancée Julia Goldman, the sister of Boris Gorev, was undergoing treatment for tuberculosis. She died in his arms on 4 June 1904. Her illness and death depressed him - in letters to his sister, Dzerzhinsky explained that he no longer saw any meaning for his life. That changed with the Russian Revolution of 1905, as Dzerzhinsky became involved with work again. After the revolution failed he was again jailed in July 1905, this time by the Okhrana. In October he was released on amnesty. As a delegate to the 4th Congress of the Russian Social Democratic Labour Party in Stockholm, Dzerzhinsky entered the central body of the party. From July through September 1906, he lived in Saint Petersburg and then returned to Warsaw, where he was arrested again in December of the same year. In June 1907 Dzerzhinsky was released on bail. At the 5th Congress of the Russian Social Democratic Labour Party, in London in May–June 1907, he was elected "in absentia" as a member of the Central Committee of the Russian Social-Democratic Labor Party. In April 1908 Dzerzhinsky was arrested once again in Warsaw and again exiled to Siberia (Yeniseysk Governorate) in 1909. As before, Dzerzhinsky managed to escape (by November 1909). In 1910 he reached Italy, where he met Maxim Gorky on Capri; he then returned to Poland.