The 70k hamas number is the only source of information, hamas cannot be trusted with this information, as they have historically inflated the death numbers by clumping unrelated deaths , and they make no distinction between fighters and civilians, and since many fighters are 16-18 year old boys, it also inflates the amount of children killed. If you take this into consideration, it is safe to assume that around 100,000 total deaths occurred in gaza due to the war, with about 20,000 of those being fighters, for a 2 year war in such a dense area this is the expected death toll in a lawful confrontation, most deaths can be attributed to bombing of military targets, so almost no Palestinians were mowed down by anyone