In this early reference from Irenaeus circa CE 200 in which he shows that we all, both Jew and Gentile crucified Christ, he quotes the OT Psalm 2:1
Why do the heathen rage, and the people imagine a vain thing?
To show that it was Jew and Gentile who crucified Christ.
... by the mouth of our father David, Thy servant, hast said, Why did the heathen rage, and the people imagine vain things? The kings of the earth stood up, and the rulers were gathered together against the Lord, and against His Christ. For of a truth, in this city, against Thy holy Son Jesus, whom Thou hast anointed, both Herod and Pontius Pilate, with the Gentiles, and the people of Israel, were gathered together, to do whatsoever Thy hand and Thy counsel determined before to be done. Irenaeus, AH, III, XII, 5
Thus, by extension, having a hand of sorts in this, then Christ died for all.
PS The quote from Psalm 2:1 was written circa 1000 BCE, so that may be the earliest reference to our killing Jesus.