Oklahoma plans to resume executions by using nitrogen or another gas to starve an inmate of oxygen because it cannot obtain the drugs needed for lethal injections, state officials said on Wednesday.

Oklahoma is investigating last week's execution of Clayton Lockett — so horribly botched one witness said, "It looked like torture." The state used a mixture of lethal drugs never used before in that ...

One Oklahoma death row inmate is dead and another has had his execution postponed, following the botched delivery of a new lethal injection cocktail. An official halted Clayton Lockett's execution 20 ...