Kathmandu, 12 September: Police have arrested the prime suspect involved in the en masse killing of a family at Umling Khola Village of Madi Rural Municipality in Sankhuwasabha district. Police has held Lok Bahadur Karki, 28,  in suspicion of his involvement in killing six people from the same family. According to District Police Office, Chainpur. The arrested one will be made public in a press conference at Chainpur today. Tej Bahadur Karki, 52, his mother Parbati Karki, 84, his spouse Kamala Karki, 52, his daughter-in-law Ranjana Karki, 32, his grandson 11-year-old Dipen Karki and granddaughter 7-year-old Goma Karki were found dead on last Monday. People's News Monitoring Service