I can't confirm these pictures as real, but they seem to show the "protestors" taking soldier as hostages:
http://fotogaleri.hurriyet.com.tr/ga...id=36575&rid=2
We also know at least some of them were armed, as the soldiers were shot twice. So when armed men take a soldier hostage, they cease to be out of control rioters and become full fledged military combatants.
Can anyone really say in a situation where armed men have hostages on their way into Hamas controlled territory, lethal force is not absolutely necessary?
Edit:
http://news.bbc.co.uk/2/hi/world/mid...t/10251805.stm
These pictures are confirmed as real.