Peace Now
In the wake of the Sabra and Shatila massacre, Peace Now led a march from Zion Square and moved towards the Prime Ministers' Office in Jerusalem on 10 February 1983. During the march Peace Now demonstrators encountered a group of right-wing activists. In the ensuing confrontation, Yona Avrushmi tossed a hand-grenade into the crowd, killing Emil Grunzweig, a prominent Peace Now activist, and injuring several others.