U.N. Secretary-General calls for militants to stop placing rockets at schools . Mother of Israeli-American teen killed sends message to Palestinian parents . `` There seems to be a strong possibility that international humanitarian law has been violated , in a manner that could amount to war crimes , '' U.N. High Commissioner for Human Rights Navi Pillay said Wednesday . The Associated Press contributed to this report. 695 Palestinians killed since beginning of renewed hostilities , the Gaza Health Ministry says .
U.N. Secretary-General calls for militants to stop placing rockets at schools . Mother of Israeli-American teen killed sends message to Palestinian parents . The Associated Press contributed to this report. 695 Palestinians killed since beginning of renewed hostilities , the Gaza Health Ministry says .