Judges 9:49-57 NIV

49 So all the men cut branches and followed Abimelech. They piled them against the stronghold and set it on fire over the people inside. So all the people in the tower of Shechem, about a thousand men and women, also died.
50 Next Abimelech went to Thebez1 and besieged it and captured it.

References for Judges 9:50

51 Inside the city, however, was a strong tower, to which all the men and women--all the people of the city--fled. They locked themselves in and climbed up on the tower roof.
52 Abimelech went to the tower and stormed it. But as he approached the entrance to the tower to set it on fire,
53 a woman dropped an upper millstone on his head and cracked his skull.2

References for Judges 9:53

54 Hurriedly he called to his armor-bearer, "Draw your sword and kill me,3 so that they can't say, 'A woman killed him.' " So his servant ran him through, and he died.

References for Judges 9:54

55 When the Israelites saw that Abimelech was dead, they went home.
56 Thus God repaid the wickedness that Abimelech had done to his father by murdering his seventy brothers.
57 God also made the men of Shechem pay for all their wickedness.4 The curse of Jotham5 son of Jerub-Baal came on them.

References for Judges 9:57