The knife used by the youth in the horrific Shahbad Dairy murder was bought by him around 15 days ago and police are yet to recover it, a senior officer said on Tuesday.
Sahil, 20, stabbed a 16-year-old Sakshi over 20 times and then bludgeoned her with a cement slab, which killed her on the spot. She had 34 injury marks on her body and her skull was smashed.
Sahil has been frequently changing his statement to mislead the investigators, an officer said. He said he bought the knife around 15 days ago and police now are trying to find where he bought it from, he said.
According to police, since Sahil bought the knife days before the incident, it is not unlikely he was planning to kill her already, but he also claimed that he killed the girl in a fit of rage since she had been ignoring him.