The Catechism in Questions & Answers

173. Who is to blame for the death of Jesus?

On account of the Roman governor’s involvement, the conviction and execution of Jesus was no longer only a matter concerning the Jews: Gentiles had also shared in it. All human beings of all time periods are sinners and charge themselves with guilt. Jesus died for the sins of all mankind. For this reason, all human beings also ultimately bear the blame for Jesus death.