Asahel — 2 Samuel 2:16–19
And they caught every one his fellow by the head, and thrust his sword in his fellow's side; so they fell down together: wherefore that place was called Helkath-hazzurim, which is in Gibeon. And the battle was very sore that day; and Abner was beaten, and the men of Israel, before the servants of David.
And the three sons of Zeruiah were there, Joab, and Abishai, and Asahel: and Asahel was as light of foot as a wild roe. And Asahel pursued after Abner; and in going he turned not to the right hand nor to the left from following Abner.