if his friends n accquaitances find him pious does not mean that he cannot be the killer. He must be a man who has a split personality. The police must be very sure, but they must also take this matter of people speaking in favour of this man very seriously. it shows that people nowadays donot think of mumbai police with the same reverence . they have to find out what is wrong within the force for people to openly talk against them in such a public case. they have to get the confidence of the people back n fast. it is their duty.