Roo- you can try and spin it as much as you want however the fact is Goldstone derived his assumption of a bomb hitting a flour mill based on an "account". There is no forensic evidence to support this just claims made by people on the ground. Again you have clearly taken the side of the UN and what they say is gold. Objectivity and facts are evidently not important to them or to you.
Islamist militants attack African Union base in southern Somalia (Reuters)
from the article: Report: UN evidence counters Israel's account of Gaza war