In case anyone is wondering what C0anus intentionally left out - posting a blurb from a known Hamas mouthpiece - Mohammed Odeh, the newly appointed military commander of Hamas's Al-Qassam Brigades was killed along with his wife and son in the attack.
The IDF seems to have hit exactly who it was targeting: a terrorist hiding behind his wife's naqib.

The term Human Shields was created to justify their killing
The term "Human Shields" was first used in 1880. Back then so-called "Palestinians" were still living in Syria and Egypt.
Unlike the direct (and successful) targeting of military commanders, it's a war crime.

"Civilian" deaths, to the extent someone who willingly aids and cohabitats with a know terrorist is a civilian, would end the instant Hamas decides to crawl from under their rocks and meet the IDF in open battle. We both know which side is unwilling and afraid of that prospect, but only one of us is willing to admit it.

One person's terrorist is another person's freedom fighter.
I don't believe killing innocent people is justified.

One person's innocent civilian is another person's known collaborator.
Odeh's specialty was counter intelligence. He hunted, killed and tortured Palestinians suspected of working with Israelis. He's probably responsible for more Palestinian deaths than any single member of the IDF.

For what it's worth, I suspect not much to you, the death toll of this attack varies among the different reports. It might have been as low as 3 and as much as seven, 15-20 injuries. For the sake of argument, because Im curious, let's take the lowball number. If Odeh his wife and son were the only deaths would this strike be "justified"?