2 Samuel 1:13-15

13 David spoke to the young man who had brought him the report. He asked, "Where are you from?" "I'm the son of an outsider, an Amalekite," he answered.

14 David asked him, "Why weren't you afraid to lift your hand to kill the Lord's anointed king?"

15 Then David called for one of his men. He said, "Go! Strike him down!" So he struck the man down, and the man died.