This case may be near solution. Parents not knowing about the crime done on her daughter cannot be faulted. There may be many reasons behind their behaviour post marriage. It may be that Rajkumar and others might wanted to rape the girl and when she resisted they have killed her. After they might have killed Hemraj to hide their crime because Hemraj may have emotional attachment with Talwars. After both killings all three killers might have spread the news to their parents that Hemraj trying to rape and in the process killed Aarushi and after seeing that they have killed Hemraj. Or they might have spread rumour about hemraj and aarushi affairs to cast suspision in the mind of parents. To protect their family dignity parents might decided to keep quite about murder. Media and police for their own mean gain let whole country believe they have killed their own daughter