Louisiana has carried out its first nitrogen hypoxia execution and its first execution in 15 years, killing Jessie Hoffman Jr ...

It was the fifth time nitrogen gas was used in the U.S. after four executions by the same method — all in Alabama.

Airgas, a nitrogen and oxygen supplier, is considering action against Louisiana over potential misuse of its products during ...

Jessie Hoffman Jr., who was convicted in a 1996 murder, argued the method of nitrogen hypoxia would violate his ability to ...

Jessie Hoffman was put to death on Tuesday after the Supreme Court declined to intervene. It was the state’s first execution ...

A few seconds before 6:27 p.m., Jessie Hoffman jerked slightly. It would be the last significant movement Hoffman would make, ...

Wendell Grissom received a lethal injection at the Oklahoma State Penitentiary and was pronounced dead at 10:13 a.m.

Louisiana subsequently built a nitrogen hypoxia facility at the Louisiana State Penitentiary consisting of an execution chamber, a valve and storage room, and an observation area. Medical experts ...

It lists all available execution methods — lethal injection, nitrogen hypoxia, electrocution and ... Before lethal injection, MDOC used the gas chamber for executions starting in 1954 when ...