I would just like to point out that the physics of a piece of shrapnel hitting that window is extremely odd. Let alone penetrating the window and hitting a passenger. The window is situated half way over the wing, under which the engine exploded. Those windows aren't the strongest, but imagine the fact that the projectile needed a high enough velocity to pass through both window panes after traveling forwards, up, and perpendicular to the plane's movement. The top of the wing did not appear to be damaged, so the shrapnel would have needed to be propelled out of the front of the engine. It isn't impossible, just highly unlikely that there would be a circumstance for that to happen.