Massacre is the act of killing of a (large) number people in a utmost brutal and cruel manner. Best known example are the flour massacres and the Israeli bombings on buildings where large number of people are.

Mass killing is the act of killing a (large) number of people where the description of the manner carries a neutral character, like the shootings at GHF points in Southern Gaza, and the killings near the Zikim crossing in northwest Gaza on aid seekers where Israeli troops have been found shooting from a nearby military base and from tanks.

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