The murder Committing_crime of Sagar Sarowar and Meherun Runi ( also known as the Sagar-Runi murder case ) is about the unsolved double murder Committing_crime case of two well-known , married Forming_relationships Bangladeshi journalists who were stabbed Bodily_harm to death Death for a yet to be determined Deciding motive in their Dhaka apartment on 11 February 2012 in Bangladesh .