(Barabbas had been thrown into prison for an insurrection in the city, and for murder.)
OJB(Bar-Abba was a man who was thrown into the beis hasohar, because of some insurrection which occurred in HaIr as well as a retzach.)
TCENT(This was a man who had been thrown into prison for an insurrection that had taken place in the city, and for murder.)
T4TBarrabas was a man who had tried to persuade people in the city to rebel against the Roman government. While doing that, he had murdered someone. So he had been put {they had put him} in prison, where he was waiting to be executed.