Main door gets locked automatically when closed,this is genrally the case withy many modern houses. Compunder Krishna was misleading the CBI all the while even under narco test. Khukri can not be flushed down the toilet , and everybody knows that. Rajkumars tea shirt had the blood stains of Aurishi. 14year old can be easily gagged by bodyly powerful looking compounder Krishan and gagging her mouth was not that difficult.
When she risisted rape attempt (it is very natural for a woman to resist ) they hit on her head very hard , so much that the skull bone caved in. There must have been more than one person in side the bedroom of Aurishi. So the rape attempt led to an altercation between them. Hitting on head was a terrible desparate attempt to slience and that was why it was so hard that the skull bone caved inside. she might have been dead with that hit or might gone unconscious. It seems they made sure by slitting her throat.
