The convicted six are: Moniruzzaman Ghorami, Humayun Sardar, Jahangir Sardar, Enamul Sheikh, Quader Sheikh, and Pintu Sheikh.
The court acquitted two other accused as allegations brought against them could not be proved.
According to the prosecution, the accused intercepted Ripon Roy, 19, a CD shop owner, while he was on his way home at Goriadanga in Botiaghata upazila on April 1, 2007 and slaughtered him with sharp weapons over a prevailing feud.
They left the grievously injured Ripon‘s body on the road and fled, said the court’s bench clerk Md Sayedul Haque Shahin.
Victim’s father filed a murder case with Botiaghata Police Station, he added.
Criminal Investigation Department (CID) of police on July 20, 2010 submitted a chargesheet against eight accused in the case.