When the Philistines asked, "Who did this?" they were told, "Samson, the Timnite's son-in-law, because his wife was given to his friend.1" So the Philistines went up and burned her2 and her father to death.3
References for Judges 15:6
Samson said to them, "Since you've acted like this, I won't stop until I get my revenge on you."
He attacked them viciously and slaughtered many of them. Then he went down and stayed in a cave in the rock4 of Etam.5
References for Judges 15:8