A 52-year-old man from Michigan was put to death with nitrogen gas for the rape and murder of a women in 1991 in Alabama.

It involves placing a respirator gas mask over the person’s face to replace breathable air with pure nitrogen gas, causing death by lack of oxygen. Frazier was strapped to a gurney with a blue ...

A man convicted of ... executions with nitrogen gas when three inmates were put to death using the method last year. The method involves placing a respirator gas mask over the person's face ...

It involves placing a respirator gas mask over the person's face to replace breathable air with pure nitrogen gas, causing death by lack of oxygen. The execution began at about 6:10 p.m after a ...

(AP) — An man convicted of ... to conduct nitrogen gas executions, putting three people to death last year with the method. It involves placing a respirator gas mask over the person’s face ...