Who killed Aarushi...
With no crucial recoveries like that of the murder weapon, the CBI depended on various disclosures, narco-analysis of key players and a sound test in the Talwar household to reach the conclusion that the couple in their room with the AC on could not hear anything happening in the adjacent room where Aarushi was killed.
The CBI’s final theory that led to the conviction of Talawars was that two types of weapons were used in the killings — one was a heavy and blunt object and the other a sharp and light instrument.
The blunt injury was caused first and was sufficient to cause death. The identical measurement of the lacerated wound by the blunt weapon on both victims shows the use of the same weapon. But till date the two objects remain untraced. Other than the parents, three domestic helps — Raj Kumar, Vijay Mandal and Krishna, who knew the Talwars — were also arrested by the first CBI team and given a clean chit by the other.
After probing the case for a little over a month, the CBI declared in a press conference on July 11, 2008 that the Talwars were innocent.
The theory the CBI worked upon was that the three men tried to assault Aarushi and when Hemraj intervened they killed them both. Then CBI Director Ashwani Kumar was not convinced with the theory and was not in favour of pressing charges against the trio. A new team under Superintendent of Police Nilabh Kishore took over and the Investigating Officer, Additional Superintendent of Police late AGL Kaul, once again started probing the role of the Talwars.