The Central Bureau of Investigation on Monday named a 16-year-old student of a private school in Bhondsi as the main accused in the murder case of a Class 2 boy. The agency filed its 50,000-page chargesheet before the court of Additional Sessions Judge Jasbir Singh Kundu, reported The Indian Express.

The CBI told the court that it had “sufficient evidence” against the Class 11 student, reported NDTV. Fingerprints at the crime scene matched with that of the teen and his mobile data and CCTV footage established his guilt. Ashok Kumar, the bus conductor who was initially arrested and released later, has now been made one of the prime witnesses in the case for the CBI, reported the Hindustan Times.

Meanwhile, the court rejected the bail plea of the juvenile accused for the third time, according to ANI. The court is treating him as an adult in the case.

In January, the court had restrained the media and public from revealing the identity of those involved in the murder. Additional District Sessions Court judge JS Kundu said the terms “Vidyalaya”, “Prince” and “Bholu” should be used to refer to the school, the 16-year-old student of the institute accused of the murder and the victim.

On September 8, 2017, the Class 2 student was found with his throat slit inside a washroom of the school in Haryana’s Gurugram. The autopsy revealed that injuries on the boy’s neck, inflicted by a sharp-edged weapon, were the cause of death. The Gurugram Police initially arrested the bus conductor, but the CBI detained the 16-year-old student for the crime on November 8, 2017.