Louisiana plans to use nitrogen gas to execute death row inmate Jessie Hoffman next week. Here's what to know about the ...

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Louisiana has used nitrogen gas to put a man to death for a killing decades ago, marking the first time the US state has used the method as it resumed executions after a 15-year hiatus.

Liquid nitrogen (LN2) is typically supplied in bulk tanks, dewars, or vessels by gas companies. However, relying on ...