See Acts 4:27. Jesus' followers singled out Herod and Pontius Pilate, but blamed the Gentiles and the Jews for the death of Jesus. (And, in the next verse, state that this was all God's will and plan.)
Blaming the Jews alone seems wrong. But so does blaming the Romans alone.
it appears that NRSV Bible text for Acts 4:27 chose
For in this city, in fact, both Herod and Pontius Pilate, with the Gentiles and the peoples of Israel, gathered together against your holy servant Jesus, whom you anointed
Blaming the Jews alone seems wrong. But so does blaming the Romans alone.