Series of assassinations leaves Yahya Sinwar de facto Hamas leader and top Israeli target: Experts ABC NewsHamas political chief to be buried in Qatar as Iran vows retaliation: Live updates CNNVideo New details in assassination of Hamas political leader ABC NewsBomb Smuggled Into Tehran Guesthouse Months Ago Killed Hamas Leader The New York TimesRing of fire around Israel: Iran has made war inevitable, MidEast expert says The Jerusalem Post