What's so complicated about this case? i couldn't understand..
As far crime is concerned..it's clearly parents!! A mentally retarded person can make out that.. It was no burgalary, no sexual assualt..just a cold blooded murder..hair pulled (shows the hatred and anger criminal had)..use of precise weapon(only Dr can do that), parents sitting in next room. They didn't complain till next day..and gave false informations of timings and details!! Now what remains is the motive!! just grill and drill the culprit and u get it!!
Motive could be mostly..an affair with servant( major possibility..thats why both got killed and so brutally she was assaulted) and this is not uncommon in society..i am talking sense!! girl had some affair..and it must be something too bad!! affair is not looked upon so badly otherwise in indian society anymore!!
I rule out possibility of father's afair..coz then girl's mother wud have protested..she wudnt have watched the crime there...and father wont get mad to this extent to pull hair of daughter..kill her and then kill servant to eliminate witness..then why the hell he left his wife?? she was witness too!!! a man has affair..he kills 2 people..who wud be least bothered of state and leaves wife..who wud be most upset with this affair?..lol UP police...gawaar hi rahenge!!!
Lets watch and see..what our geneious cops find on this :)