Who knows whether they had drinks in a servants room? Three glasses may be placed to blame the servant. It is unusual of any teenager to be in his/her room without latching. Why was Hemaraj' body hidden? No house will be permitting partying by servants. A scene was created to blame poor Hemaraj. Which they did initially - till the body of Hemaraj was discovered. Why will an outside killer lock the terrace? Why will anyone latch the entry door instead of Dr. and Mrs. Talwar's room. According to Mrs. Talwar she opened the door to her helper in the morning on hearing door bell. The door was also latched from outside according to Mrs. Talwar which is not verified of confirmed. How will someone bolt the door from inside if it was not an insider. It is definitely an insider with the help of an outsider who has done this. No strangers will come to a defense area to murder. There are so many questions that need to be answered by family before claiming to be innocent.