He mentions only these two, as those who seemed most to obstruct David's coming to the crown.
Related Commentaries of 2 Samuel 1:4
2 Samuel 1:4
4 And David said unto him, Howa went the matter? I pray thee, tell me. And he answered, That the people are fled from the battle, and many of the people also are fallen and dead; and Saul and Jonathan his son are dead also.