Nitrogen-powered engines could be the future of clean energy, offering 700x the power of hydrogen. How this breakthrough ...

Alabama became the first state to carry out executions with nitrogen gas when three inmates were put to death using the ...

Alabama has carried out the nation’s fourth nitrogen gas execution, putting a man to death for the killing of a woman who was ...

Demetrius Frazer is set to die by nitrogen gas for the murder of 41-year-old Pauline Brown in Birmingham, Alabama in 1991. Alabama has used nitrogen gas on three other inmates in the past year.

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 ...

MONTGOMERY, Ala. (AP) — 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 ...