Would Hamas really be that stupid?
RIP to the dead and a speedy recovery to anyone who is injured.
Hamas isn't the only organization there, and neither does it control all of the groups installed in the Gaza Strip. In fact, Hamas has occasionally cracked down on independent armed groups, some linked with al-Qaeda.
Regardless of the background of the assailants, what they did doesn't reflect Palestinians' values and their feelings towards Egyptians. Both Hamas and the people of Gaza fêted Egypt's elections and are hoping that it will sign closer relations with the Egyptian people. They wouldn't spoil a relationship with such potential unnecessarily, and in this reckcless, cruel way. So whoever did this, was either not Palestinian, or acting independently from mainstream Palestinian groups.
And BTW, I think this is more evidence that it's about time for Egyptian troops to re-occupy the Sinai.