Izz ad-Din al-Qassam Brigades
Muatab Mukadi, a member of Ayyash's Samaria battalion (of the Izz ad-Din al-Qassam Brigades), drove al-Souwi to one of the bus's first stops. al-Souwi chose an aisle seat on the left side of the bus, and placed the bomb (stored in a brown bag) at his feet.