First, the Romans did not “kill Jesus” — the local Judean government ordered him crucified. Local auxiliary troops, carried out this duty. Okay, I guess you could say they technically killed him, but the Roman Prefect, Pontius Pilatus (known in the English-speaking world as Pontius Pilate) was the judge and was tasked with this duty by the local government that he had to work with.

In the Gospel of Matthew, Pilate washes his hands to show that he was not responsible for the execution of Jesus and reluctantly sends him to his death. The Gospel of Mark, depicting Jesus as innocent of plotting against the Roman Empire, portrays Pilate as reluctant to execute Jesus. In the Gospel of Luke, Pilate not only agrees that Jesus did not conspire against Rome, but Herod Antipas, the Tetrarch of Galilee, also finds nothing treasonable in Jesus’ actions. In the Gospel of John, Pilate states “I find no guilt in him [Jesus]” and he asks the Jews if Jesus should be released from custody.

So, you can see, it was not the Romans who killed Jesus.