Bro just shoot him if you already do such idiotic things as executions.

Faster, more Reliable, less suffering, Cheap.

This is normal in low-oxygen, low-CO2 hypoxia.

The patient is not conscious during these spasms, and feels no pain.

EDIT: Nitrogen hypoxia is an instant and painless death experience, because you pass out almost without conscious awareness, the same as if you go under the gas they have at the dentist while counting down from 10 and never remember getting to 1. The difference is that the body's death is very slow, as the body's tissues are deprived of oxygen and slowly run out of gas and stall out. As long as the patient continues to not spike in CO2, they will remain unconscious and unaware through the entire process - as necessary and brutal as it is to - you know - stop a body.

EDIT2: Exercise reasonable doubt when reading the comments below which are calling into question whether the patient 'gasped for air' or doubt for some reason that a mask is adequate. 1) The patient held their breath from the nitrogen intake as long as they could. This is the same as you sitting on a dentists chair refusing to inhale the gas. You will quickly suffer the normal heightened discomfort until your brain takes executive control and just makes you to inhale. The patient in this case brought their will right up against that reflex, a miserable experience and one in which I can't imagine it was a comfortable mental space to be in. Then the inhale reflex kicked in and they nearly instantly lost consciousness. Over the next hour or so their body slowly ceased function, without tripping any of the really scary nervous system alarms. Patient never woke up. 2) A mask is preferred in systems like this because of the inherent safety risk involved for the administers with invisible, body-encompassing volumes of nitrogen. A mask is also totally up to the task, as anyone who's been put down at the dentist can attest to. These masks also have multiple, multiple added redundancy features which help protect the air seal, as well as post-review-diagnostics. They're safe. The main concern in this situation is administer training, in the proper handling of the body's seizures such that the mask isn't somehow pried off.

Bro at this point, just fucking shoot them....

Or better yet, how about we don't kill people as a form of legal punishment in any decade officially taking place after the middle ages?

Crazy how americans love to shoot each other for any reason, but would never shoot for death penalty. Weird.

“Pro-Life”

Just going to, uh, leave this here...

Jacob Geller - The False Evolution of Execution Methods (YouTube)

A little documentary on how execution methods have changed over time and how they haven't necessarily gotten more humane like we'd assume they would.

Awww did it make the poor people witnessing someone get killed a little uncomfortable? Ooh noooo how teeerible

I hope they investigate and publish details. Nitrogen was supposed to be painless - it's used for suicide capsules after all. So I wonder what went wrong here.

Why is there only like lethal injection for killing someone.

Surely this was a bad idea, and is there not a million other ways to do it?

Carbon monoxide? Let them fall sleep and just fucking die like they always tell us to be careful of with gas at home.

Or any of the myriad of poisons and toxins out there that causes instant death.

What about that damn fish from Japan. Surely better than this spectacle plastering the news.

I mean there’s god damned suicide booths out there in some country, why not bring one of them in!