Luke 23:13-25 "And Pilate, when he had called together the chief priests and the rulers and the people, said unto them, Ye have brought this man unto me, as one that perverteth the people: and, behold, I, having examined [him] before you, have found no fault in this man touching those things whereof ye accuse him: No, nor yet Herod: for I sent you to him; and, lo, nothing worthy of death is done unto him. I will therefore chastise him, and release [him]. (For of necessity he must release one unto them at the feast.)
And they cried out all at once, saying, Away with this [man], and release unto us Barabbas: (Who for a certain sedition made in the city, and for murder, was cast into prison.) Pilate therefore, willing to release Jesus, spake again to them.
But they cried, saying, Crucify [him], crucify him. And he said unto them the third time, Why, what evil hath he done? I have found no cause of death in him: I will therefore chastise him, and let [him] go. And they were instant with loud voices, requiring that he might be crucified. And the voices of them and of the chief priests prevailed. And Pilate gave sentence that it should be as they required. And he released unto them him that for sedition and murder was cast into prison, whom they had desired; but he delivered Jesus to their will."
I read these verses and I see that Pilate and Herod both had the authority to release Jesus. They did not even have to listen to the Jews. The Jews could not prove a thing of which they accused Jesus. There were no grounds whatsoever to crucify Jesus. If either one of them had any integrity at all they would have released Jesus with an armed guard. Yes, they had the authority to release Jesus, but they did not have the power to do so. Jesus was crucified from the foundation of the world. Pilate, Herod, the chief priest, the rulers, the people were all just fulfilling a role in order that Jesus might be crucified as our Passover Lamb.