Explosion in Leontievsky Lane
The Explosion in Leontievsky Lane was a terrorist act committed on 25 September 1919 by a group of anarchists with the aim of destroying the leadership of the Moscow Committee of the Russian Communist Party (Bolsheviks). As a result of the explosion of a bomb thrown by the terrorist Sobolev, 12 people were killed, another 55 were injured.
Source: Wikipedia — Explosion in Leontievsky Lane (CC BY-SA 4.0)