Killer tapped the door, Hemaraj opened the door ,they entered the house,Hemaraj locked the door as a routine and they walked in to Hemaraja's room and sat there. Hemaraj went to the bar used by his master and brought a wishkey bottle and three glasses , for them to drink. They may be his long lost friends ? Close ones of his age.
Second scenario: Killers tapped the door. Dr.Talwar opened the door and they took Hemaraj to the terrace and bumped him off. Now came back, and had drinks in Hemaraj room(very doubtful,considering the blood stains on staircase and drinking in servants room,without any blood stains) and proceeded towards the kid's room and killed her as well in the same gruesome way(doubtful because why such a gruesome murder when someone kills his own daughter? or when helped by relatives or hired killers) her head was almost separated from the trunk probably with a heavy knife , not even a kitchen knife but really heavy) Third scenario: Dr.Talwar alone doing it. Not possible. Since there are more than one person is involved. Talwar's wife is sleeping in the same room. She will wake up.
4th scenario: Kid surprised the killers by encountering them. Now the kid was chased to her room and killed ( not possible because the girl gave no resistance ,probably she was deeply asleep. Why killers should lock the door to the terrace ? Here Dr.Talwar becomes the key suspect. Why the girl was killed ? Here the servant hemaraj becomes the key suspect.
