John 11:53: [After the raising of Lazarus]
“So from that day on they plotted to take his life.”
Mark 3:6 is even earlier:
>Then the Pharisees went out and began to plot with the Herodians how they might kill Jesus.

It can easily be said that the Roman’s barely understood their role in what was happening at the time, as they governed over Judea at the time and Jesus was sent as a prisoner according to the Sanhedrin’s laws at the time.