A Gazipur court handed down capital punishment to six persons and sentenced three others for life on Tuesday.
Additional session's judge Fazle Elahi gave the verdict while all the convicts were present in the dock.
The death row convicts are Rafiqul Islam, Atikul Islam, Alam Sheikh, Selim Sheikh, Nayan Sheikh and Anar Hossain Sheikh – all residents of Ghagatia village under Kapasia upazila of the district.
Alongside, Anwara Begum, Abdul Motaleb and Sheikh Shamsuddin were sentenced with life term.
Schoolboy Sanaullah Sarkar, son of Jasimuddin of the same village, was strangulated to death over family feud and his relation with convict Anwara Begum's daughter.
Brother of the deceased had filed the case with Kapasia police.