A Georgia man has been executed for the murder of a follower of his white supremacist group.

William Mark Mize was put to death Wednesday by lethal injection at the state prison at Jackson. The 52-year-old inmate was pronounced dead at 7:28 p.m. by authorities. Mize became the second person executed in Georgia this year.

Mize was convicted of the October 1994 murder of Eddie Tucker, who was shot after he failed to follow orders to burn down what Mize considered to be a crack house in Athens. Prosecutors say Mize shot Tucker in the head with a shotgun after leading him into some woods.

Mize's attorneys sought this week to block the execution. But an appeals court dismissed their appeals and the U.S. Supreme Court also rejected a request to stay the execution.