The reports I have read suggest that they weren't all killed at once. The Israeli military sent a second drone to take out the first responders, and then a third drone as well.
This is a crime against humanity. WCK volunteers are not combatants, they were there to feed civilians. Maybe one of the people killed was one of the volunteers who fed me in Poland, but whoever they were, they did not deserve to be blown up while they were working to prevent civilians from starving.
Israel's actions in Gaza are clearly a form of collective punishment. It is clear to me that what is happening in Gaza goes well beyond any type of legitimate anti-terrorism operation.
In war, innocent people always pay the highest price.