JACKSON, Ga. — A Georgia inmate convicted in 1993 of raping and murdering his 15-year-old neighbor in suburban Atlanta has been executed, marking the first lethal injection since a botched execution in Oklahoma in April. Marcus Wellons, 59, was pronounced dead at 11:56 p.m. EDT Tuesday after a single-drug injection at the state penitentiary at Jackson, Department of Corrections authorities said. They reported no complications.