GAZA (Reuters) - An explosion tore through the home of a senior Hamas militant in Gaza on Wednesday, killing at least four people and wounding him and about a dozen other Palestinians, medics said. The cause of the explosion in the home of Ahmed al-Jabari, a senior commander in the Izz el-Deen al-Qassam Brigade, Hamas's armed wing, was not immediately known. The Israeli army, which has killed dozens of members of Hamas and other militant groups in so-called targeted attacks since the start of a Palestinian uprising nearly four years ago, had no immediate comment. Medics said four people were...