William Montgomery, who is white, pleaded guilty Tuesday to hate crime charges in the death of James Craig Anderson, who was beaten and run over in Jackson on June 26, 2011. Anderson was a 47-year-old worker at a car plant.
Three white men had previously pleaded guilty in Anderson's death.
Also Tuesday, Jonathan Gaskamp, who is also white, pleaded guilty to two federal hate crime charges in racially motivated attacks on other black people in Jackson.
Prosecutors say Gaskamp and Montgomery were among several suburban young white people who would drive to Jackson to attack African-Americans.
Sentencing is later for all five men.