One could say:
To achieve its sworn goal of obliterating hamas, Israel is willing to put the lives of all Gazans- children and adults- at risk. It's perfectly correct to, put "that all" on Israel.
Apparently there were many people present. So maybe not a good time to use a gun.
Looks like none of the civilians eas injured and one officer, only slightly. The perpetrator was apprehended, so all in all looks like a case well handled.
No, you paid for the pensioners at the time. Not for your own pensions. Imo there is a moral obligation, but you didn't pay for it. You paid for private pensions, if any.
Indiscriminately was not the right word. I'm convinced they are targeting terrorists, but don't care how many innocent students are killed in doing that. And putting that all on Hamas is a cheap excuse.