Who is to blame?

Find 12 pieces of evidence of arson by collecting fragments of leaflets or taking them from nihilist students, and by questioning 4 influential students.

Yes, it was no accident! Someone set the fire! Of course, I have no idea who... But lately we've had a lot of discussions. Everyone is suggesting something, everyone wants something... {username}, maybe you should find out what's going on and who could be the culprit?
I'm afraid my friend Rodion Raskolnikov might be involved in this...
As for the murderer you're looking for, let Petrov check those who owed her... I can't think of anything else.

Have you learned anything?

Alice? Verkhovensky?! Alarming news... We have checked everyone who owed her.