Companion animal euthanizations used to employ nitrogen hypoxia; however, after years of advocacy, all but two states have ...

The bill would add nitrogen hypoxia to the list of alternatives to lethal injection available, alongside the electric chair.

A newly proposed bill that would allow the use of nitrogen hypoxia as a method of execution in Arkansas has officially passed the House Judiciary Committee.

A bill allowing for nitrogen hypoxia to be used as a criminal execution method for the Arkansas Department of Corrections ...

The latest lawsuit, filed in Louisiana's Middle District Court, says the state has refused to release the execution protocol ...

Louisiana Gov. Jeff Landry announced the state will resume executions after a 15-year hiatus, potentially using the experimental method nitrogen hypoxia.

BATON ROUGE, La. (WVUE) - A Louisiana death row inmate scheduled to be the state’s first execution in 15 years had filed a ...

After having been convicted of a murder in 1988, Kenny Smith was put to death by a never-before-used method— nitrogen hypoxia ...

Attorneys argued that nitrogen gas executions are "cruel and unusual punishment," noting that veterinarians have banned them ...