Here is the martyr poster for 'Aatef Saleh al-Zameli. Note that he is not wearing scrubs. He's in uniform.
The name of the "nurse" killed was actually Yousef Ahmad Sheikh al-Eid. Here is his Islamic Jihad martyr poster:
The "paramedic" Yousef Jaber Darabih was also a proud member of the jihadist terror group:
If these three terrorists were using an ambulance as a means to protect themselves and weapons from attack - and given that every single one of them is a member of Islamic Jihad, this seems likely - then they were the ones performing war crimes. It also indicates that the Gaza Ministry of Health was not only working closely with the Al Qassam Brigades to use their ambulances to transport terrorists and probably weapons, but they also worked with Islamic Jihad.
I wrote then that neither the UN nor any "human rights" NGO will investigate that war crime. And I was 100% right.