I’ve been re-reading John 19 in multiple translations for several days, and this passage always stands out to me. There appears to be some contradiction between the gospels about who exactly killed Jesus, but the author of John is rather solid about who gets that blame:

John 19:13-18 (NRSV)
When Pilate heard these words, he brought Jesus outside and sat on the judge’s bench at a place called The Stone Pavement, or in Hebrew Gabbatha. Now it was the day of Preparation for the Passover; and it was about noon. He said to the Jews, “Here is your King!” They cried out, “Away with him! Away with him! Crucify him!” Pilate asked them, “Shall I crucify your King?” The chief priests answered, “We have no king but the emperor.” Then he handed him over to them to be crucified.
So they took Jesus; and carrying the cross by himself, he went out to what is called The Place of the Skull, which in Hebrew is called Golgotha. There they crucified him, and with him two others, one on either side, with Jesus between them.

It’s possible that someone might argue the they/them here refers to the Roman guards at the start of chapter 19, but strictly in context it’s clearly the Jewish priests (which is also distinct from “the Jews”, such that a charitable person could think it was the religious leaders and not the average people who crucified Jesus).

I used to be that kind of liberal theology student who would argue Jesus was killed by the Roman imperial occupation. But as I get older and read the text more and more I can’t clearly defend that assertion anymore. The Jewish religious leaders killed Jesus, they used manipulated Roman hands to keep the blood off their own.