In hopes of cutting short the rebellion, many demonstrators were shot on Bloody Sunday (1905) as they tried to march to the Winter Palace in St. Petersburg. Dmitri Feodorovich Trepov was ordered to take drastic measures to stop the revolutionary activity. Grand Duke Sergei was killed in February by a revolutionary's bomb in Moscow as he left the Kremlin. On 3 March the Tsar condemned the revolutionaries. Meanwhile, Witte recommended that a manifesto be issued. Schemes of reform would be elaborated by Goremykin and a committee consisting of elected representatives of the zemstvos and municipal councils under the presidency of Witte. In June the battleship "Potemkin", part of the Black Sea Fleet, mutinied.