The Evidence

Nikolai brought Haman back to the Capital for a public trial. While he would've wanted to just kill the traitor and be done with it, he couldn't exactly just do that to someone of Haman's unfortunate stature. No, he had to bring him back for a fair trial for everyone to see and let them be the judge for the accused actions. Not that he cared this time, at least. As far as he was concerned, Haman had already forfeited his life the moment he caught wind of his wrong-doings. 

Arriving at the palace, Nikolai dragged Haman by the collar himself as he led the way. Behind them were some of his men just to make sure that nothing would go wrong. Meanwhile, by his side was his Mineah and her current companions who would serve as witnesses to the trial. It was them that would make Haman's fate all but impossible to escape for the man, and there was nothing he could say that would even make his case somewhat appealable.