Now I know there are some Muslims out there who would try to make a case for these murderers, but I just want to put it out there, that in Islam, “because they did it” is never a case to act against the guidance of the Qur’an or the Sunnah of the Prophet (saw).
Muslims are commanded to not kill innocents, commit terrorism, etc. We are commanded to be the best example of truth and justice.
When it comes to “justified” fighting and war, we are commanded to incline towards peace if offered and to not let our hatred of an entire people incline us toward injustice. Suicide is also a major sin as well. I doubt there are Muslims out there who would seriously debate this and prove that Islam condones their actions. These men are murderers and are attempting to cover their actions with Islam, when in fact their actions put them outside the fold of Islam long ago.
They should be put to death immediately for their unrepentant crimes against humanity.
Their actions are not “blessed” but damned and may Allah (swt) reward them for their crimes and allow justice for the innocent to be swift.