'Innocent' in the Bible

The next morning when he went out and stood at the gate, he said to all the people, “You are innocent. It was I who conspired against my master and killed him. But who struck down all these?

Moreover Manasseh shed innocent blood very much, till he had filled Jerusalem from one end to another; beside his sin wherewith he made Judah to sin, in doing that which was evil in the sight of the LORD.

And also for the innocent blood that he shed: for he filled Jerusalem with innocent blood; which the LORD would not pardon.