The TV documentation makes it clear that friendly fire is the most probable interpretation.

Michael, just for your information, there has been a long-time shooting between the IDF and Palestinians at the time of Mohammed's death. This fact is completely undisputed from both sides. The dispute is not who fired at all, the dispute is who fired the deadly shots.

The situation in Derry is completely different in that respect, for it is under dispute whether there has been even a single shot from republicans before the British army started shooting. You are comparing two different situations.

Wolfgang