The correct answer to this open question is the following.
Although there are no options included, we can say the following.
Tancred de Hauteville stopped the massacre and demonstrate that the residents were under his protection when captured them for ransom and forced them to hold a standard flag that demonstrated his rule.
Tancred de Hauteville was known for his deeds during the first crusade. He was a Norman and lived in the south of Italy. With his uncle, he participated in the Crusade and was very successful in capturing Turkish Tarsus. For his many accomplishments in battle, particularly in 1099, after the victory in Jerusalem, he was awarded a new title: the Prince of Galilee. Years later he became the regent of Antioch, modern-day Syria.