Luke 11:51
from the blood of Abel unto the blood of Zachariah, who perished between the altar and the house; yea, I say unto you, it shall be required of this generation.
John 8:44
You are of your father the devil, and you wish to do the lusts of your father. He was a murderer from the beginning, and stood not in the truth, because there was no truth in him. When he may speak a lie, he speaks of his own: because he is a liar, and the father of the same.
1 John 3:10
In this the children of God are manifest, and the children of the devil: every one not doing righteousness is not of God, and the one not loving his brother with divine love.
1 John 3:12
not as Cain was of the evil one, and slew his brother; and on account of what did he slay him? Because his own works were evil, and those of his brother righteous.
1 John 3:15
Every one hating his brother is a murderer: and you know that no murderer has eternal life abiding in himself.