What type of proof they have against Bani?
Few plats, pots and jewelleries found from Jannat apt?? Cant he prove that those things were stolen? And if not then:
Is it enough to prove Bani a murderer? May be Tarun can prove that he stole all those thing and he own the jannat apt, he could take the blaime and rescue Bani. Anyway he is dieing so why not this way.