Although three years have elapsed, the investigation agency still grops in the dark over the detection of the assailants of journalist couple Sagar Sarwar and Mehrun Runi. A US laboratory, meanwhile, has confirmed the presence of two men through DNA tests after scrutinising the evidence collected from the place of occurrence as supplied by the designated investigation agency. DNA (deoxyribo nucleic acid) is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. On February 11, 2012, Maasranga Television News Editor Golam Sarwar, alias Sagar Sarwar and his wife ATN Bangla senior reporter Mehrun Nahar Runi were found dead at their rented apartment in the city’s West Rajabazar area. Sagar had suffered 28 stab wounds while Runi five before they breathed their last. Contacted, Assistant Director (investigation) of Rapid Action Battalion (Rab), ASP Wares Ali Mia, also the investigation officer of the case, said that the US lab after scrutinising the DNA sample have confirmed the presence of two men at their multistoried apartment during the gruesome murder. ‘We’ve supplied the DNA samples of 21 suspects after primary investigation. But no one of those were matched with the DNA samples of the two suspected males,’ he said. With the DNA test results, he said, now it could be suspected that the two men were involved in the killing. ‘If the two suspects are caught, the mystery behind the killing will be debunked,’ he hoped, according to a news agency.