Israel pummeled Gaza with air strikes and Palestinian terrorists launched rocket barrages at Israel on Saturday, with no sign yet of an end to the worst escalation in years after six days of conflict and amid a rising death toll. Israel on Saturday bombed the home of Khalil al-Hayeh, a top leader of Gaza’s ruling Hamas terrorist group. The Israeli military said Al-Hayeh’s home served as part of what it said was the group’s “terrorist infrastructure.” Al-Hayeh is a senior figure in the Hamas political leadership in Gaza. His fate after the strike was not immediately known. Israel’s military also brought down a 12-story block in Gaza City that housed the Associated Press and Qatar-based Al Jazeera media operations, as well as other offices and apartments. Israel gave advance warning of the strike so it could be evacuated. The Israeli military said later the building was a legitimate military target because …