Bihar Chief Minister Nitish Kumar on Friday told the parents of Aditya Sachdeva, a student who was allegedly shot dead by the son of a JD-U leader, that justice will be done in the case.Nitish Kumar gave the assurance when he visited their house in Gaya town where he was attending an official function, an official said.Rocky Yadav, son of Janata Dal-United leader Manorama Devi, allegedly shot dead Aditya Sachdeva, son of a businessman, on May 7 after the latter overtook his vehicle.According to police, Rocky has confessed he killed Sachdeva. He is lodged in the Gaya Central Jail along with his father Bindi Yadav, a politician with a criminal past, Bindi Yadav's bodyguard Rajesh Kumar and a cousin, Teni Yadav. All of them are accused in the murder case."Nitish Kumar told the parents that police investigation into the case was on the right track," the official said.Rocky's mother Manorma Devi is a member of the legislative council of Bihar.