'Innocent Blood' in the Bible

if you don't oppress the foreigner, the fatherless, and the widow, and don't shed innocent blood in this place, neither walk after other gods to your own hurt:

Thus says Yahweh: Execute justice and righteousness, and deliver him who is robbed out of the hand of the oppressor: and do no wrong, do no violence, to the foreigner, the fatherless, nor the widow; neither shed innocent blood in this place.

But your eyes and your heart are not but for your covetousness, and for shedding innocent blood, and for oppression, and for violence, to do it.

Only know for certain that, if you put me to death, you will bring innocent blood on yourselves, and on this city, and on its inhabitants; for of a truth Yahweh has sent me to you to speak all these words in your ears.