A court in Louisiana ruled Jessie Hoffman can be put to death Tuesday using nitrogen hypoxia - deprivation of oxygen causing suffocation.

For centuries, societies have searched for a way to execute criminals without cruelty, believing progress could make death humane. We trace how the United States moved from hangings and electric ...

Alabama, unless stopped by the courts, intends to strap inmate Kenneth Eugene Smith to a gurney and use a gas mask to replace breathable air with nitrogen, depriving him of oxygen needed to stay alive ...