 Complete the following phrase:  Zubeidi himself traces his entry into armed militancy back to late 2001 when, after the killing of a close friend, he learned to become a bombmaker. Then, on 3 March 2002, one month before the main assault on the refugee camp, his mother was killed during an Israeli raid into Jenin. She had taken refuge in a neighbors home and was shot by an IDF sniper who targeted her as she stood near a window. She subsequently bled to death. Zubeidis brother Taha was also killed by soldiers shortly afterward. A month later, a suicide bomber from Jenin 