Senior Hamas Leader Is Killed in Blast in Gaza City By THE ASSOCIATED PRESS Published: May 29, 2004 GAZA CITY, Gaza Strip (AP) -- An explosion destroyed a motorcycle in Gaza City early Sunday, killing a founder of Hamas' military wing, his aide and a bystander. Hamas charged that Israel was responsible for what it called a "dirty assassination crime." It said the attack killed Wael Nassar, 38, one of the founders of the Hamas military wing Izzedine al-Qassam. His assistant, Mohammed Sarsour, 31; and an unidentified bystander were also killed, Hamas said. The two Hamas leaders were on the...