Three top nitrogen gas manufacturers in US bar products from use in executions

Louisiana will join Alabama in adding nitrogen suffocation as option for killing prisoners

Nebraska | Opponents of death penalty decry proposal to use nitrogen gas for executions

Christian minister says nitrogen execution he witnessed is slow, ‘spiritually violent’ torture

A new Louisiana capital-punishment bill would fundamentally alter physician licensing

Alabama seeks to perform second execution using nitrogen hypoxia

As Ohio lawmakers consider executions with nitrogen gas, Governor keeps postponing execution dates

Opponents of Alabama's nitrogen executions want nitrogen companies to withhold supply

First nitrogen execution was a ‘botched’ human experiment, Alabama lawsuit alleges

USA | Voters divided over nitrogen gas executions

Kansas AG sponsors bill adding nitrogen hypoxia option for executions

43 Alabama inmates may face nitrogen gas executions

Sister Helen Prejean: Alabama Just Showed Why We Must Kill the Death Penalty