For all we know, the person who tipped the IDF may have planted the gun on these 3's premises in order to get rid of them. The Tipster may even have been the perpetrator who is walking clean to kill another settlor. Or the IDF itself may have planted the evidence to cover the assination. Afte all, we read a few days ago that the Israeli Forensics Institute harvested body parts without families' consents, so we are not dealing with Mother Teresea types. Or perhaps they were indeed guilty, but a fair and impartial trial is the only way to seek justice; but there has to be a willing government. Now we will never know the truth. The truth is just what the IDF says now. See the danger.
U.S. to defend Syrian rebels with airpower, including from Assad (Reuters)