As a native of this city I believe it's going in the right direction. Take the example of taslima case where the culprits were release within few hours due to political compulsions.
Same yardstick applies here. If you want to do it in a transperent manner here certainly the muslim parties will exert pressure to release the culrits/suspects and congress which always would like to lick their foots for the vote bank politics would agree to do the same.
I wish the culprits would be identified soon and others to be released.