2 Samuel 14:6

14:6 Your servant has two sons. When the two of them got into a fight in the field, there was no one present who could intervene. One of them struck the other and killed him.

2 Samuel 17:18

17:18 But a young man saw them on one occasion and informed Absalom. So the two of them quickly departed and went to the house of a man in Bahurim. There was a well in his courtyard, and they got down in it.