Samsons last great act was the destruction of a building that resulted in the death of 3,000 civilians (including women) who were members of a different religion, while they were not engaged in war, but were at a worship service.
“Now the house was full of men and women; all the lords of the Philistines were there, and on the roof there were about three thousand men and women, who looked on while Samson performed. Then Samson called to the Lord and said, “Lord God, remember me and strengthen me only this once, O God, so that with this one act of revenge I may pay back the Philistines for my two eyes.” And Samson grasped the two middle pillars on which the house rested, and he leaned his weight against them, his right hand on the one and his left hand on the other. Then Samson said, “Let me die with the Philistines.” He strained with all his might; and the house fell on the lords and all the people who were in it. So those he killed at his death were more than those he had killed during his life. (Judges 16:27-30)
The great Bible hero Samson ended his life as a “suicide bomber.”
Incidentally, to help us appreciate the number of casualties, the September 11 suicide attack also left about 3,000 civilians dead.