If Israelis machine-gunned protesters at a peaceful demonstration, I think we can safely say that the BBC, New York Times, and others would cover it in a major way.
From Ha’aretz:
Before noon, two civilians were killed during a protest held in Gaza City under the banner “Stop the Killing.” Some 1,000 Palestinians marched in the city, calling for an end to the fighting, but when they approached a Hamas position, militants fired at the protesters, killing two.