Mark 15:13-15 NIV

13 "Crucify him!" they shouted.
14 "Why? What crime has he committed?" asked Pilate. But they shouted all the louder, "Crucify him!"
15 Wanting to satisfy the crowd, Pilate released Barabbas to them. He had Jesus flogged,1 and handed him over to be crucified.

References for Mark 15:15