A man convicted of killing his former lover and her husband in what prosecutors called a fit of rage has been executed in Missouri.

A Missouri inmate who is weeks away from execution is in a hospital after suffering what a Missouri Department of Corrections spokeswoman described as a “medical emergency."

Witnesses watched through a window at an Alabama prison as Kenneth Eugene Smith became the nation's first person to be put to death using nitrogen gas.

A man put to death using nitrogen gas shook and convulsed on the gurney as Alabama carried out the first-of-its-kind execution that once again placed the United States at the forefront of the debate over capital punishment.

Alabama has executed a man with nitrogen gas, putting him to death with a first-of-its-kind method that once again put the U.S. at the forefront of the debate over capital punishment.

A man convicted of the 1996 killing of a University of Oklahoma dance student has been executed.

An Oklahoma death row inmate scheduled to be executed in September for the 1996 killing of a University of Oklahoma dance student says he plans to reject his chance for a clemency hearing.

The Oklahoma Department of Corrections has reversed its position and now says it will allow an anti-death penalty minister inside the execution chamber for an upcoming execution.