David being at Ziklag receiveth tidings by an Amalekite of Saul and Jonathan’s death: the messenger pretendeth himself to have killed Saul, 1-12. David causeth him to be put to death, 13-16; Saul and Jonathan with a song, 17-27.
Poole's Outline of 2 Samuel 1: David's Reaction to the Death of Saul