This is a journalistic article that does provide multiple sources of evidence - including multiple sources of eyewitness testimony, the facts of what happened to the car/damage to the bodies, what the IDF says happened, and the non-response by the IDF to the evidence presented here - what other evidence could possibly meet your bar here?

This doesn't seem like a good faith discussion by people that informed themselves on what this piece is saying, so I'm bowing out. Have a good one.