The convict is identified as Bachchu, 58, of Patharghata upazila.
According to the prosecution, Hamida Begum, 45, was beaten to death by the convict over family feud on August 27, 2008.
As Hamida remained missing since August 27, locals challenged Bachchu on September 15, 2008 when he confessed to killing her.
Later, he was handed over to police and a case was filed in this connection.
Barguna Additional District and Session’s Judge AHM Ismail Hossain handed down the verdict.