I don't have time right now to read through all of the posts that have appeared since my last post, but I did see a couple. I don't know if this has already been answered, but just in case...

The proof that the Israelis opened fire first is in the video I posted earlier, which is from the live feed that was coming from the ship as the attack was in progress (which I was actually watching at the time, and I saw all of what we see in the video while it was happening), in which we seen and hear a correspondent reporting the fact that there are already wounded people on board the ship before we see the helicopters appear and then let down the ropes. A few minutes after he reports the wounded people, we see the helicopter appear and lower down a rope on which the Israelis absail down to the ship.

The report of wounded people prior to any of the Israelis landing on the ship is proof that the Israelis opened fire first.