2 Samuel 3:27

27And when Abner returned to Hebron, Joab took him aside into the midst of the gate to speak with him privately, aand there he struck him bin the stomach, so that he died, for the blood of Asahel his brother.

2 Samuel 4:6

6And they came into the midst of the house as if to get wheat, and they stabbed him cin the stomach. Then Rechab and Baanah his brother escaped.
Septuagint  And behold, the doorkeeper of the house had been cleaning wheat, but she grew drowsy and slept. So Rechab and Baanah his brother slipped in

2 Samuel 20:10

10But Amasa did not observe the sword that was in Joab’s hand. eSo Joab struck him with it fin the stomach and spilled his entrails to the ground without striking a second blow, and he died.

Then Joab and Abishai his brother pursued Sheba the son of Bichri.
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