There were cases of murder multiplying and multiplying. And only after some time could you finally know who did that—it was Nikolai Gogol

However, the whole government couldn't localize him. And the only connection to him was Fyodor, who was put into the mental asylum. As his accomplice, he should know about his whereabouts

So you did the only right thing in this moment. I went to that mental asylum to ask him about Nikolai