Al Jazeera is preparing a legal file to send to the International Criminal Court (ICC) over what it called “the assassination” of one of its cameramen in Gaza, the Qatari-based network said on Saturday. The cameraman, Samer Abu Daqqa, was killed by an Israeli drone strike on Friday while reporting on the earlier bombing of a school used as a shelter for displaced people in the southern Gaza Strip, according to the Qatar-based broadcaster. Al Jazeera said Israeli drones fired missiles at the school that left Abu Daqqa with fatal injuries. “The Network established a joint working group, which co…