MADURAI: A hit-and-run incident in Kanyakumari district of Tamil Nadu , which claimed the life of a senior citizen, has turned out to be a planned murder committed by the brother of a divorced woman.Police said Siluvaimuthu, 65, of Sevarakottai near Thiruvattar in Kanyakumari district, was a rubber plantation worker. He was walking on the road when a speeding car hit him on Wednesday evening. He died on the spot.The car which hit him overturned a few hundred metres away. One of the three occupants in the car sustained injuries and he was rushed to hospital. Two others escaped without any injury.The Thiruvattar police questioned the injured man, identified as Ajith, 25. Ajith confessed that he had deliberately hit the senior citizen with his car to kill him.Ajith’s sister had been married to Siluvaimuthu’s elder son, Vijil Selvasingh. The two had separated a few years ago, following which there was enmity between Ajith and Vijil.Ajith decided to take revenge on Vijil by killing his father. He drove the car at a high speed and killed the senior citizen man.The police registered a murder case against Ajith and two of his friends who were in the car.