fallingblood
Agnostic Theist
Rome had a very good reason to execute Jesus. When Jesus entered into the Temple, and caused the disturbance there, that was all the reason Rome needed. The reason for this is partly due to the time of the occurrence, as well as the message Jesus was spreading.Rome wouldn't have executed Jesus without a lot of pressure from the Jewish religious heirarchy
The time being Passover. It was a time that tensions were already high. The Jewish people were celebrating their freedom from the Egyptians. This would have caused quite a bit of tension with the Roman authority, as celebrating the overthrow of former oppressors had the possibility of making some a little more courageous. So we had a tinderbox situation there. Jesus entering into the temple and disrupting functions/services that were needed in the Temple could have been a spark that would set the whole thing into a riot. Rome was aware of this.
More so, Jesus was talking about a Kingdom of God that would replace the Kingdom of Rome. Add that to the idea that others, if not Jesus himself, was calling him the King of the Jews, and the Son of God (actually a title the emperor Augustus had), it labeled him as a insurrectionist. It was all the reason that Rome needed to execute Jesus. And Pilate was quite good at issuing orders such as that, as well was Rome in general.