Hamas deliberately targeting civilians

There is no possible justification for Hamas deliberately killing civilians. Therefore, international humanitarian law considers such attacks as rocket attacks on Israelis grave breaches that constitute war crimes and cannot be justified, no matter the circumstances.From the beginning of the second intifada at the end of September 2000 through the end of September 2017, Palestinians killed 813 Israeli civilians, including 135 minors (children and teens under the age of 18). The incidents in which these civilians were killed include suicide bombings, shooting and stabbing attacks perpetrated by Palestinians in populated areas and buses; incidents in which Palestinians threw stones at people and cars; and firing of rockets and mortar shells by Palestinian organizations in the Gaza Strip at civilian communities in Israel.

https://www.btselem.org/israeli_civilians