The chief priest and the elders started making plans to have Jesus executed. They bound Him and handed him over to the Roman governor Pilate, as executions were under Roman jurisdiction.
The chief priests and the elders were assembling in the palace of the high priest, Caiaphas, and were trying to figure out the best way to dispose of Jesus. They were looking for a way to secretly kill Jesus without riling up His followers. When they were perplexed and could not find a way to dispose of with the Jesus problem, satan presented them with an opportunity that they quickly grabbed on to.