India, Feb. 29 -- Santhan, a convict in the Rajiv Gandhi assassination case who was later freed by the Supreme Court, died in Chennai on Wednesday following a cardiac arrest, a government official said. Santhan alias T Suthendiraraja (55), a Sri Lankan national, was one of the seven people set free by the Supreme Court in 2022 after they served over 20 years of jail term in connection with the killing of the former prime minister in Sriperumbudur near here in 1991. E Theranirajan, Dean of the Rajiv Gandhi Government General Hospital where Santhan was undergoing treatment for liver failure, said he died at 7.50 am. Santhan suffered a cardiac arrest at around 4 am on Wednesday and was revived and given an oxygen supply with a ventilator, Theranirajan told reporters. He, however, did not respond to treatment and died at 7.50 am, he said. htc...