 Yemelyanov subsequently became one of the four designated bomb-throwers in the assassination of Tsar Alexander II.On 13 March [1 March, Old Style], when Sophia Perovskaya signaled the Emperor's approach to the road alongside the Catherine Canal, the bomb-thrower Timofey Mikhailov decided to leave.Yemelyanov, Ignacy Hryniewiecki, and Nikolai Rysakov were the only assassins present.