Mark Howard McClain, sentenced to death 14 years ago for a murder in Richmond County, died by lethal injection Tuesday evening.
McClain refused a last meal and did not wish to give a last statement.
When asked if he wanted to pray, McClain said, "No, I'm fine." Those were his last words.
McClain is the 45th person executed in Georgia since the reinstatement of the death penalty in the 1970s and the third person executed in the state this year.
McClain died at 7:24 p.m. eastern daylight time (EDT) at the Georgia Diagnostic and Classification Prison in Jackson. Outside the facility, about a dozen death penalty opponents prayed and held signs asking for the abolishment of the death penalty.
Neither the victim's family nor McClain's family attended the execution.
The 42-year-old McClain was sentenced to death for the murder of 28-year-old pizza store manager Kevin Brown in Richmond County. McClain stole $130 from the store's register.
Nurses had no trouble finding a suitable vein for the injection site. That issue recently caused a prison in Ohio to halt an execution after an unsuccessful, two-hour search.
Contributors: Susanna Capelouto and Carl Zornes contributed to this report.