A man called Barabbas was in prison, with the rioters who had committed murder during a riot.
At that time they had a notorious prisoner called Barabbas.
Now, at the Feast, Pilate used to grant the people the release of any one prisoner whom they might ask for.
So, when the crowd went up and began to ask Pilate to follow his usual custom,
He released the man who had been put in prison for riot and murder, as they demanded, and gave Jesus up to be dealt with as they pleased.