The Times verified the location and timing of the video, which was taken in the southern city of Rafah early on March 23. Filmed from what appears to be the front interior of a moving vehicle, it shows a convoy of ambulances and a fire truck, clearly marked, with headlights and flashing lights turned on, driving south on a road to the north of Rafah in the early morning. The first rays of sun can be seen, and birds are chirping.

The convoy stops when it encounters a vehicle that had veered onto the side of the road — one ambulance had been sent earlier to aid wounded civilians and had come under attack. The new rescue vehicles detour to the side of the road.

Rescue workers, at least two of whom can be seen wearing uniforms, are seen exiting a fire truck and an ambulance marked with the emblem of the Red Crescent and approaching the ambulance derailed to the side.

Then, sounds of intense gunfire break out.

…

The Palestine Red Crescent Society spokeswoman, Nebal Farsakh, said in an interview from the West Bank city of Ramallah that the paramedic who filmed the video was later found with a bullet in his head in the mass grave. His name has not been disclosed yet because he has relatives living in Gaza concerned about Israeli retaliation, the U.N. diplomat said.