The Thoothukudi police had already booked Inspector Harikrishnan, of Thattarmadam police station and Thirumanavel in connection with the case. Sources said that Thirumanavel had allegedly tried to capture the land belonging to Selvan and his brothers with the help of Inspector Harikrishnan.
On September 17, Selvan was knocked down by a car when he was on his bike. The members inside the car allegedly abducted him and later his body was found near Kadakulam. The murder took place after Selvan's brothers filed a case of custodial torture against Inspector Harikrishnan, who allegedly tried to book them under the Goondas Act after foisting case against them. It may be recalled that three months ago, Jayaraj and Bennix, the father-son duo, died of police torture in Sathankulam, nearly 10 km away from Thattarmadam, in the same district. The custodial deaths case is now being probed by the CBI.