As much as I have covered the evidence in regards to the hospital blast showing Israel was likely not responsible, I think it is fair and important to point out that this hospital was previously hit by an Israeli artillery strike only three days before on October 14th. Here you can see an Israeli munition in video of the aftermath.
It is especially telling that we don't have munitions evidence for the October 17th blast. Hamas leadership says it "dissolved like salt in water", which is obviously extremely suspect. As numerous experts have stated, it is highly unlikely that there would be no munitions evidence at such a blast site. Unfortunately it likely means we won't get such evidence. The general consensus both from various intelligence agencies and independent analysts is that Israel was not responsible for the October 17th blast.