Matthew 27:23

‘And he said, “Why, what evil has he done?” But they cried out exceedingly, saying, “Let him be crucified.” '

Pilate protested Jesus' innocence, but that was enough to guarantee that they would have no mercy. They liked to think that they had Pilate on the ropes, and as Jerusalemites or zealot sympathisers they had little sympathy for Jesus. Thus they repeated their demand even more strongly, “Let him be crucified.”

This cry makes clear that we are not talking about an average crowd. This was not just calling for the death sentence on a blasphemer, but for a curse on someone so that He would be totally despised. No ordinary Jewish crowd would have asked for this kind of punishment for Jesus. This was a crowd which saw Him as a traitor, which fits in with the idea that they were either close supporters of the Chief Priests or supporters of the insurrectionists, and thus saw Jesus with His peace loving ways as an enemy of the people.