guys....it think dev is not the killer!!!maybe i am totally wrong but do you remember when kunal was after akash and bhatti, at that time dev was with shruti(wasn,t he the one who helped her to escape from beauty parlour?)
and secondly writers have been showing these symptoms that dev is the killer since two months,they are not so stupid to so easliy tell their viewers who is the killer.maybe they wanted to leave their audience with a BIG SHOCK!
secondly i was thinking that in anurag basu,s movies the most innocent people are the evil ones,predicting that maybe its bhatti(i like him too)but give it a thought!i know he has been proved innocent but what if........