which would make him the fourth inmate put to death by nitrogen gas in the U.S. since Alabama began using the controversial method last year. Frazier, 52, is set to die by nitrogen gas for the ...

If nitrogen hypoxia is used, an inmate breathes 100 percent nitrogen, which causes suffocation. Louisiana is one of four states that have approved it for executions.

A federal judge on Friday refused to stop what would be the fourth nitrogen gas execution in the U.S., saying the inmate had not proven his claims that the new method is unconstitutionally cruel ...

Demetrius Terrence Frazier was executed by nitrogen gas hypoxia in Alabama for the 1991 murder of Pauline Brown. Frazier was the fourth inmate to be executed by nitrogen hypoxia, a method that has ...