The IDF has published video footage from an unmanned aerial vehicle which they say proves that the Palestinian family killed last week were hit by the blast from the explosives being carried by Palestinian fighters, not by Israeli ordnance. (I wrote about this here).
Why does it matter? Even according to the Israeli version, IDF forces were shooting in the area; if you shoot deadly weapons in a place that has lots of innocent civilians in it, sometimes you'll kill them. It is your decision to shoot there in the first place that means you bear responsibility for the outcome, no matter what the minutiae of the technicalities are, doesn't it? For the dead and their families it certainly doesn't matter: they're dead. Had the Israelis not been shooting into their front yard, they'd still be alive.
First, note that it took most of the week for the IDF to come up with the full results of their investigation. Conspiracy theorists will read this to prove that the Israelis cooked the evidence. The rest of us ought to note that apparently someone in the IDF thinks the real facts are important, and wanted carefully to evaluate the evidence to sift them out.
Beyond that however, what we have here is an army doing its best to limit collateral damage. The choice to defend its citizens means it must hit their attackers, and the attackers chose to operate where their own civilians are. So the IDF has no choice but to operate where Palestinian civilians are, since that's where Palestinian fighters intent on killing Israeli civilians are. The IDF, however, unlike their enemy, is intent on not killing the Palestinian civilians, and as the article linked here shows, they use all sorts of methods to achieve this. When the methods fail, they then meticulously try to piece together what went wrong. Over time, these meticulous attempts to follow the evidence will continue to narrow down what the Americans call collateral damage, but the Israelis, even their Prime Minister, call tragic deaths.
This is the way one wages a moral war.