Try and talk to him.

"Wait," you ask, before he can walk down the hallway. "You are no ordinary guard, who are you?"

"I am Richard Montaine. I am knight who is repaying a special favor to the judge. He doesn't trust you so he asked me to guard you tonight."

"You don't fight like a knight," you query. "Knights are not known for their unarmed fighting skills."

He laughs, "True, you can say I have had a very colorful past. I respect your spirit, but you really should get to bed."