Ben met with his lawyer alone.
Apparently, Dante used the money he gave him to hire the lawyer and try to get him out of there.
In reality, once the lawyer arrived, it was very easy to get him out.
He was being held illegally, and in that basement, valuable evidence was found that the man in that house was a serial killer who had taken the lives of many girls before.
The lawyer caused a commotion, and within a few minutes, Ben was able to walk free after it was concluded that even if Ben had killed the man, it was in self-defense.
Ben continued to smile at the old policeman as he left the station a free man.
The old policeman was furious.
"Sir, why are you so angry?" one of the few brave policemen at the scene asked him. "It's true that he's a troublesome and powerful kid, but he's nothing to worry about."