u/Yum1995

First Joab kills Abner, whom David appointed for the army.

Then he kills David's own son Absalom, especially after King David told all the troops to treat him gently.

Then he kills Amasa, David's nephew, whom he put in charge of the army.

It wasn't until Solomon became king that he had Joab killed.

Could David not find anybody else to replace this murderer? Sad that so many guys people had to die because of him.