Oklahoma executed Gilbert Ray Postelle, 35, on Thursday morning, for his role in a 2005 quadruple murder at an Oklahoma City trailer park.
The execution is the state’s fourth since October, and comes just over a week before a federal trial is set to start in a lawsuit accusing Oklahoma of using unconstitutionally cruel lethal injection drugs during executions.
Oklahoma previously had a six-year moratorium on executions after a series of botched killings, before resuming the practice last year.