It was a custom at the Feast to release a prisoner, anyone the people asked for. There was one prisoner called Barabbas, locked up with the insurrectionists who had committed murder during the uprising against Rome. As the crowd came up and began to present its petition for him to release a prisoner, Pilate anticipated them: "Do you want me to release the King of the Jews to you?" Pilate knew by this time that it was through sheer spite that the high priests had turned Jesus over to him.
But the high priests by then had worked up the crowd to ask for the release of Barabbas. Pilate came back, "So what do I do with this man you call King of the Jews?" They yelled, "Nail him to a cross!" Pilate objected, "But for what crime?" But they yelled all the louder, "Nail him to a cross!" Pilate gave the crowd what it wanted, set Barabbas free and turned Jesus over for whipping and crucifixion. (Mark 15, The Message)Worship at 12, lunch following.