Genesis 4:8 Cain told Abel his brother. And it came about when they were in the field, that Cain rose up against Abel his brother and killed him.

Exodus 21:14 "If, however, a man acts presumptuously toward his neighbor, so as to kill him craftily, you are to take him even from My altar, that he may die.

Deuteronomy 19:11 "But if there is a man who hates his neighbor and lies in wait for him and rises up against him and strikes him so that he dies, and he flees to one of these cities,

2 Samuel 3:27 So when Abner returned to Hebron, Joab took him aside into the middle of the gate to speak with him privately, and there he struck him in the belly so that he died on account of the blood of Asahel his brother.

2 Samuel 20:10 But Amasa was not on guard against the sword which was in Joab's hand so he struck him in the belly with it and poured out his inward parts on the ground, and did not strike him again, and he died. Then Joab and Abishai his brother pursued Sheba the son of Bichri. (NASB ©1995)