2 Samuel 1:5-6

1:5 David said to the young man who was telling him this, “How do you know that Saul and his son Jonathan are dead?” 1:6 The young man who was telling him this said, “I just happened to be on Mount Gilboa and came across Saul leaning on his spear for support. The chariots and leaders of the horsemen were in hot pursuit of him.

2 Samuel 1:15

1:15 Then David called one of the soldiers and said, “Come here and strike him down!” So he struck him down, and he died.