Thanks for your post.
I had not heard about this outrageous behaviour but it comes as no surprise. If you look at how Israeli politicians talk about Palestinian protestors it should come as no surprise that some sections of the Israeli population will indulge in such bloodthirsty behaviour.
If you are appalled by the massacres of Palestinians carried out by Israeli soldiers then you have to speak out against this murder.
Demand your elected representative condemns this mass murder.
Give money to Medical Aid for Palestinians which provides emergency medical supplies to hospitals in Gaza and support the BDS movement.

Keep up the good work exposing these crimes.