There is no denying that IDF did also commit crimes, its a war.
However its very clear that aljazeera journalists are the only ones allowed in Gaza by Hamas, they definitely work together and the case presented by the IDF regarding the journalist seems to be reasonable, even though not independently proven, wich will most likely not happen with more things in this war.
Overall, the concept of "valid targets" is bullshit. It is used to assuage our innate understanding that killing people -- particularly the young, the innocent, the defenseless, the elderly -- is WRONG. Israel has, in this particular war, extended the concept in a way that is clearly genocidal. Their target selection, as covered by 972, was wildly more vicious than their own historical limits on collateral damage. An anonymous Israeli intelligence officer called it "a mass assassination factory".
Thats where i don't agree, there are shit loads of valid targets everywhere and the validation of the targets is by the Geneva conventions. The claim of a genocide is just idiotic. And even when they kill massiv amounts of people, that doesn't mean those people aren't working with, for or are terrorists. Also, the "young" are a valid target as soon as they pick up a weapon.
But yes crime needs to be investigated independently and without bias.