I Think that a Father cant involve in this muder because if there is any involvement of Father then a practice of wife swapping will be involve in this game otherwise it is not possible that Nupur Talwar is favouraning a Person who is engage with other Women,While my thinking is Rajesh Talwar is innocent and why police is not searching the records of Hemraj Mobile, Thought police has given all details about arusi ,DrRajeah mbile then why not police is giving details about Hemraj Mobile,It may be possible that Hemraj has called up any person at Night ,who has done the muder of Hemraj and also of Arusi.But that man should also be familar with the house only after that he may know about the activity of Dr.Rajesh and Nupur Talwar one possibilty is also there that ,Hemraj has mixed poison in the dinner after that all of them where become sleeply and invited other person at nigth to the home and that person due to some conflict killed hemraj and arusi may have seen this crime as she may not taken dinner then she should also be muder by that man.

Reply if there is any other story in our mind .