Inside Shejaiyya we also saw several #Hamas gunmen. One passed dressed in a woman's headscarf... tip of a gun poked out from under cloak.
— Janis Mackey Frayer (@janisctv) July 20, 2014
This happens to be a war crime.
The 1977 Protocol I Additional to the Geneva Conventions of 12 August 1949 , article 37, defines "perfidy" as "(c) the feigning of civilian, non-combatant status."
Too bad there are no photos, but my impression is that most photographers in Gaza are Gazan stringers.
UPDATE: Hebrew media reports that a Hamas member dressed as an old man and approached IDF soldiers on Saturday morning, begging for medical help. As troops approached him, he then started throwing hand grenades, and the soldiers killed him. (h/t Yoel)