the 44-year-old was one of three men who were convicted for having dragged James Byrd for a car until he died, after more than three kilometres.
One of the other men were executed in 2011, while the third, who cooperated with investigators, was sentenced to life in prison for the crime.
was found outside a church in the town of Jasper.
Repeated attempts to transform the now executed man's death penalty failed, and earlier in the week he got a rejection on a request for suspension. Execution is the fourth in a year in the united states.