A man has been found guilty of manslaughter in connection with his half-brother’s fatal shooting in Boston in 2021, the Suffolk County District Attorney’s Office said. Oscar Bolding, 45, killed his half-brother, 40-year-old Levar Foster, on May 24, 2021, during Foster’s nephew’s college graduation party, the district attorney’s office said in a press release. The two men were attending the party at a home on Blue Hill Avenue in Dorchester when they got into an argument and had to be separated by family members.