Verses with the word murderer in the Old Testament (10 verses):

Numbers 35:16
And if he smite him with an instrument of iron, so that he die, he is a murderer: the murderer shall surely be put to death.

Numbers 35:17
And if he smite him with throwing a stone, wherewith he may die, and he die, he is a murderer: the murderer shall surely be put to death.

Numbers 35:18
Or if he smite him with an hand weapon of wood, wherewith he may die, and he die, he is a murderer: the murderer shall surely be put to death.

Numbers 35:19
The revenger of blood himself shall slay the murderer: when he meeteth him, he shall slay him.

Numbers 35:21
Or in enmity smite him with his hand, that he die: he that smote him shall surely be put to death; for he is a murderer: the revenger of blood shall slay the murderer, when he meeteth him.

Numbers 35:30
Whoso killeth any person, the murderer shall be put to death by the mouth of witnesses: but one witness shall not testify against any person to cause him to die.

Numbers 35:31
Moreover ye shall take no satisfaction for the life of a murderer, which is guilty of death: but he shall be surely put to death.

2 Kings 6:32
But Elisha sat in his house, and the elders sat with him; and the king sent a man from before him: but ere the messenger came to him, he said to the elders, See ye how this son of a murderer hath sent to take away mine head? look, when the messenger cometh, shut the door, and hold him fast at the door: is not the sound of his master's feet behind him?

Job 24:14
The murderer rising with the light killeth the poor and needy, and in the night is as a thief.

Hosea 9:13
Ephraim, as I saw Tyrus, is planted in a pleasant place: but Ephraim shall bring forth his children to the murderer.