Just as soon as Israel accepted an Egyptian-brokered ceasefire Hamas fired 47 rockets killing one Israeli citizen. Anyone who has followed the conflict could have predicted this with certainty; the point of a ceasefire—for a terrorist organization—is to break it for exactly the same reason it purposely attacks women and children.
Dr Anna Geifman expanded on this:
[C]hildren are the last consecrated absolute. …militant nihilism strives to ruin first and foremost what their contemporaries hold sacred.
And
Random, en masse brutality against civilians—emblematic for the 20th-century terror—culminated in a spectacular act of apocalyptic destruction on 9/11.