Additional District and Sessions' Judge M Hafizur Rahman pronounced the verdict against Al-Amin Sohagh, 19, son of Anwar Hossain, a resident of Sarkarpara village, Gabtoli upazila of the district.
According to the prosecution, the convict abducted Shahriar Nafis Siam, 8, a student of class two, from Old Bogra town area and demanded Tk3 lakh from his parents as ransom. Later, Sohagh killed Siam sliting throat on May 17, 2014.
After the incident, victim's father Billal Rahman filed a case with Sadar Thana against Sohagh on May 19.
Police after investigation submitted charge-sheet with the court on On September 23.