New Delhi, July 6 -- A serving Manipur Police constable from the Kuki community has emerged as a key suspect in the killing of six abducted Naga men, officials familiar with the investigation said, adding that the policeman is being questioned by investigators. The bodies of the six Naga men were recovered about a month after they were abducted along with their families by Kuki militant groups during the height of the Naga-Kuki clashes in Manipur on May 13. "He is a resident of the same village, Leilon Vaiphei, where the Naga families were abducted. He is being questioned after investigators received a tip-off and gathered circumstantial evidence indicating his possible involvement," an official, who requested anonymity, said.P7...