So, I went into the courthouse and failed to influence the jury. I then had a mob of angry jurors. I snuck away and went to the cells. I released all the prisoners. They were hostile. Why? I freed them. It seems the game labeled them as hostile/conservative since I had "alienated the masses" with that failure to influence the jurors.
Not a major bug, but still. It doesn't make sense to release prisoners and they're all like "Hey dawg we hate you. We're not even gonna thank you for freeing us."