A prisoner in Alabama has become the first inmate in the world to be executed with nitrogen gas.
Convicted murderer Kenneth Smith, 58, was put to death after the US Supreme Court declined a legal bid to halt his sentence.
His official time of death was 8.25pm on Thursday (2.25am UK time).
According to witnesses, the execution took about 22 minutes and Smith appeared to remain conscious for several minutes.
For at least two minutes, he appeared to shake and writhe, sometimes pulling against the restraints. That was followed by several minutes of heavy breathing, until breathing was no longer perceptible.
State authorities had predicted unconsciousness within seconds and death within minutes.
In a final statement, Smith said: “Tonight Alabama causes humanity to take a step backwards… I’m leaving with love, peace and light.”
He made the ‘I love you sign’ toward his wife and other family members who were witnesses. “Thank you for supporting me. Love, love all of you,” Smith said.
The use of nitrogen gas is highly controversial and critics say it’s cruel and experimental. It had never been used before anywhere.
It involves clamping a mask tightly to the face, covering the mouth and nose.
The mask is then fed with nitrogen gas. The person continues to breathe normally, but with no oxygen present the body gradually shuts down until death occurs – effectively they are suffocated.
Image: Elizabeth Sennett was stabbed and beaten to death. Pic: Family handout
Smith was convicted in the 1988 murder-for-hire killing of Elizabeth Sennett.
Prosecutors said he was one of two men who were each paid $1,000 to kill Ms Sennett on behalf of her pastor husband, who was deeply in debt and wanted to collect on insurance.
She was found with eight stab wounds to the chest and one in each side of her neck.
The other killer, John Forrest Parker, was executed in 2010.
In a statement, Alabama state governor Kay Ivey said: “On March 18, 1988, 45-year-old Elizabeth Sennett’s life was brutally taken from her by Kenneth Eugene Smith.
“After more than 30 years and attempt after attempt to game the system, Mr Smith has answered for his horrendous crimes.
Image: Campaigners turned up outside the Alabama prison. Pic: Reuters
Image: Law enforcement monitored the gate as Smith’s execution took place. Pic: AP
“The execution was lawfully carried out by nitrogen hypoxia, the method previously requested by Mr Smith as an alternative to lethal injection.
“At long last, Mr Smith got what he asked for, and this case can finally be put to rest.
“I pray that Elizabeth Sennett’s family can receive closure after all these years dealing with that great loss.”
‘Mom got justice’
“Alabama has achieved something historic,” said state attorney general Steve Marshall.
“Like most states, Alabama has made the judgement that some crimes are so horrific that they warrant the ultimate penalty.
“But anti-death-penalty activists have worked to nullify that moral judgement through pressure campaigns against anyone assisting states in the process.
“They don’t care that Alabama’s new method is humane and effective, because they know it is also easy to carry out.”
Image: Mike Sennett, the son of Smith’s victim, called it a ‘bittersweet day’. Pic: AP
Reverend Jeff Hood, who witnessed the execution, said the reality did not match Alabama’s predictions of a quick death.
“We didn’t see somebody go unconscious in 30 seconds. What we saw was minutes of someone struggling for their life,” he said.
Reverend Hood said Smith had a final meal of T-bone steak, hash browns, toast and eggs in steak sauce.
Mike Sennett, the son of Smith’s victim, spoke to media after the execution.
“Nothing happened here today is going to bring Mom back. It’s kind of a bittersweet day,” he said.
“We are not going to be jumping around. whooping and holler, hooray and all that… I’ll end by saying Elizabeth Dorlene Sennett got her justice tonight.”
Image: Pic: Alabama law enforcement mugshot from 1980s
Smith’s execution comes after he survived a botched lethal injection in 2022 when officials tried unsuccessfully for hours to put an intravenous line into his body.
The incident helped prompt a review of the state’s death penalty procedures.
The Supreme Court justices declined to uphold Smith’s legal challenge that claimed a second execution attempt – after the first failure caused him severe trauma – would violate the US Constitution’s 8th Amendment protections against cruel and unusual punishment.
However the decision was not unanimous, with three justices voting to halt the execution.
“Having failed to kill Smith on its first attempt, Alabama has selected him as its ‘guinea pig’ to test a method of execution never attempted before,” Justice Sonia Sotomayor wrote, saying she would have granted the injunction.
“The world is watching.”
Just minutes before the execution was carried out, the Supreme Court refused for a second time to intervene.
Image: Vladimir Putin shaking hands with Donald Trump when they met last week. Pic: Reuters
It was a stunning illustration of Mr Trump’s about-face in his approach to peace. For the past six months, a ceasefire has been his priority, but after meeting Mr Putin in Alaska, suddenly it’s not.
Confirmation that he now views the war through Moscow’s eyes.
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2:10
Trump applauds Putin and shares ride in ‘The Beast’ last week
The second was the format itself, with Mr Trump reverting to his favoured ask-what-you-like open-ended Q&A.
In Alaska, Mr Putin wasn’t made to take any questions – most likely, because he didn’t want to. But here, Mr Zelenskyy didn’t have a choice. He was subjected to a barrage of them to see if he’d learnt his lesson from last time.
It was a further demonstration of the special status Mr Trump seems to afford to Mr Putin.
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The third was their phone call. Initially, President Trump said he’d speak to the Kremlin leader after his meeting with European leaders. But it turned out to be during it.
A face-to-face meeting with seven leaders was interrupted for a phone call with one – as if Mr Trump had to check first with Mr Putin, before continuing his discussions.
We still don’t know the full details of the peace proposal that’s being drawn up, but all this strongly suggests that it’s one sketched out by Russia. The White House is providing the paper, but the Kremlin is holding the pen.
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1:25
Trump, Zelenskyy and the suit: What happened?
For Moscow, the aim now is to keep Mr Trump on their path to peace, which is settlement first, ceasefire later.
It believes that’s the best way of securing its goals, because it has more leverage so long as the fighting continues.
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But Mr Putin will be wary that Mr Trump is pliable and can easily change his mind, depending on the last person he spoke to.
So to ensure that his sympathies aren’t swayed, and its red lines remain intact, Russia will be straining to keep its voice heard.
On Monday, for example, the Russian foreign ministry was quick to condemn recent comments from the UK government that it would be ready to send troops to help enforce any ceasefire.
It described the idea as “provocative” and “predatory”.
Moscow is trying to drown out European concerns by portraying itself as the party that wants peace the most, and Kyiv (and Europe) as the obstacle.
But while Mr Zelenskyy has agreed to a trilateral meeting, the Kremlin has not. After the phone call between Mr Putin and Mr Trump, it said the leaders discussed “raising the level of representatives” in the talks between Russia and Ukraine. No confirmation to what level.
Donald Trump wants to set up a face-to-face meeting between Russian President Vladimir Putin and Ukrainian President Volodymyr Zelenskyy. How would that work? And would it accelerate peace in Ukraine?
Zelenskyy and other European leaders made their way to Washington DC. What was their goal? To make sure Trump is still on their side – and to make sure he’s not got too close to Putin and his plans to annex parts of Ukraine after the pair met in Alaska.
How much of a turning point was the White House summit in Russia’s invasion of Ukraine?
If you’ve got a question you’d like the Trump100 team to answer, you can email it to trump100@sky.uk.
You can also watch all episodes – including the interview with Tim – on our YouTube channel.
It’s always wise to let the dust settle before reaching conclusions with this presidency.
But on the face of it we are further away from peace now than we were two weeks ago.
The consensus that was held back then was that Vladimir Putin would only relent under maximum pressure. He does not want slivers of territory. He wants the whole of Ukraine extinguished and absorbed into his greater Russia.
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2:23
What’s next for Ukraine?
To stop him, allies agreed an immediate ceasefire was necessary, along with much more painful pressure, namely sanctions hitting his oil industry. Europeans and Republicans in Congress agree on that.
Then Alaska and Donald Trump’s U-turn. No ceasefire and no more severe sanctions. So less pressure.
Yesterday’s reality TV diplomatic circus in Washington has not shifted him on that stance, so he stays it seems now aligned with Mr Putin on those crucial points.
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0:42
Starmer: This needs to be a lasting deal
Making matters worse for Ukraine, allies seem to be accepting it will have to give up land taken by force.
They sweeten the pill by saying of course only Ukraine can decide whether or not to cede territory, but there is now enormous pressure on Ukrainian President Volodymyr Zelenskyy to do so.
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In return there is nebulous and vague talk of security guarantees. European leaders are seizing on the fact Mr Trump did not rule out American troops being involved and hinted at US support for post-war security arrangements.
But that is little consolation for Ukrainians. They point out this president changes his mind as often as his socks and goes back on commitments, even those enshrined in international treaties.
The best that can be said for the White House meeting is it sets up more such meetings.
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Much of yesterday’s events were focused on stroking President Trump’s ego. Many here in Kyiv would prefer he was reminded of a few hard facts about this war. Mr Putin cannot be trusted. Mr Putin wants the end of Ukraine. Mr Putin will only relent under maximum pressure.
Protracted international diplomacy may suit Mr Trump’s craving for attention, but they fear it will only take us further away from peace.