The chamber door closed at Holman Correctional Facility in Atmore, Alabama, and inside a steel chair bolted to the floor, Kenneth Eugene Smith became the first human being in American history to be executed by pure nitrogen gas. His body convulsed. His feet kicked against the restraints.
His hands curled into tight fists. Witnesses described the scene as haunting, a man slowly drowning in dry air, his lips turning blue, his chest heaving for four full minutes before stillness finally came. The total time from the first turn of the valve to the declaration of death: 22 minutes.
That makes it the longest execution in Alabama’s history.
The state had promised a painless, quiet death. They called nitrogen hypoxia “humane,” a scientific alternative to lethal injection. But what unfolded behind the witness glass told a different story.
Correctional officers had strapped an industrial mask over Smith’s face, connected to hoses that fed only pure nitrogen, no oxygen. The gas pulled the air from his lungs, triggering a violent, involuntary struggle. “It looked like torture,” one witness later said.
“He was shaking and writhing on the gurney. The gurney moved several times. Then there were several minutes of heavy breathing, like he was fighting for air.”
The state’s own timeline confirmed that Smith remained conscious and moving for far longer than officials had predicted.
Smith’s final words hung in the chamber before the gas began to flow. “Tonight, Alabama causes humanity to take a step backwards,” he said, his voice calm and clear. “I’m leaving with love, peace, and light.”
There was no anger, no defiance. Just a quiet dignity that seemed to unsettle even the guards. He had been given a final meal of steak, hash browns, eggs, and a dinner roll, eaten slowly in his cell as protesters gathered outside the prison walls.
Signs read “This is torture,” “Justice, not experiments,” and “No more nitrogen.” Human rights groups from across the country had descended on Atmore, pleading for a stay, for a ban, for anything to stop what they called state-sanctioned suffocation.
But the state of Alabama was determined. This was the second time Kenneth Smith had been strapped down for execution. In November 2022, the state had attempted to 𝓀𝒾𝓁𝓁 him by lethal injection.
For four hours, execution team members stabbed at his arms, his neck, his feet, desperately searching for a usable vein. Blood ran down his skin. He vomited.
He trembled. But Alabama failed. The death warrant expired at midnight, and Smith was unstrapped and walked back to his cell alive.
That night, the world believed he might die behind bars instead. But the state of Alabama does not forget, and it does not forgive. So they invented a new method, nitrogen hypoxia, built a mask, and set a new date.
The crime that led to this moment dates back to 1988, in the quiet town of Sheffield, Alabama. Elizabeth Dorene Sennett, a 45-year-old mother, was alone in her home on Dog Cemetery Road when two men knocked on her door. Her husband, Pastor Charles Sennett Sr.
, had told her they would come by to look at the property for hunting. She trusted him. She opened the door.
Kenneth Eugene Smith and John Forest Parker stepped inside, and the violence began. They beat her with a fireplace tool, a walking cane, a galvanized pipe. They stabbed her eight times, deep wounds to her chest and neck.
The house was staged to look like a robbery, a VCR and stereo taken. But the brutality was too personal.
Charles Sennett had orchestrated the murder. He was drowning in debt, having an 𝒶𝒻𝒻𝒶𝒾𝓇, and saw his wife’s life insurance as his only escape. He recruited Billy Gray Williams, a tenant, who then brought in Smith and Parker.
Each man was promised one thousand dollars, blood money for a woman’s life. When investigators closed in, Charles Sennett confessed to his sons inside his church, then walked outside, got in his truck, and shot himself in the head. He never faced a jury.
Billy Gray Williams was sentenced to life without parole and died in prison in 2020. John Forest Parker was executed by lethal injection in 2010, his final words an apology. But Kenneth Smith’s case took a different path.
Smith was convicted in 1989, but that verdict was overturned on appeal. In 1996, he was retried, and this time the jury voted 11 to 1 for life in prison without parole. They saw him as a follower, not a mastermind, a man who made a fatal decision but not one who deserved to die.
But Alabama law at the time allowed a judge to override a jury’s sentencing recommendation. The judge did exactly that, sentencing Smith to death. That judicial override power has since been banned in Alabama, but the change came too late for Smith.
He was not grandfathered in. The state moved forward with execution, first by lethal injection in 2022, then by nitrogen gas in 2024.
The controversy did not end with Smith’s death. International observers, including United Nations human rights officials, condemned the method. They called it a violation of international law, a form of torture.
Civil rights groups vowed to challenge the procedure in court. Even some conservative voices expressed discomfort, questioning whether the state had crossed a line. Alabama’s Department of Corrections defended the method, calling it efficient and humane.
But the haunting images from the witness room, the shaking, the writhing, the heavy breathing, will not easily fade. The state’s own timeline showed that Smith’s body continued to move for the first four minutes, and the gas kept flowing for a total of 22 minutes.
The death of Kenneth Eugene Smith forces a reckoning with a justice system that evolves only after it has taken lives. The judicial override that sent him to death row is now illegal. The lethal injection method that failed in 2022 is now considered too risky.
Nitrogen hypoxia, the untested experiment, has now been used once. But the question remains: when the system gets it wrong, who pays the price? Smith was not the mastermind.
He was not the husband who planned the murder. He was a man who, in a moment of terrible decision, took a life. And then the state took his.
But the true victim in this story, the one who must never be forgotten, is Elizabeth Dorene Sennett. She was a mother, a trusting wife, a woman who opened her door to evil because she believed in the man she married. She did not know her husband was drowning in debt.
She did not know he was having an 𝒶𝒻𝒻𝒶𝒾𝓇. She did not know he had chosen to have her killed rather than face his own failures. She fought hard, as Sheriff Ronnie May said, clawing at her attackers, leaving evidence of her struggle in the blood-soaked carpet.
She died in a hospital, surrounded by strangers, her life stolen by greed and cowardice.
Charles Sennett took the coward’s way out, a bullet to his own head, no accountability, no justice. Billy Gray Williams died in prison, unnoticed. John Forest Parker was executed in 2010, his apology offered but not accepted.
And now Kenneth Smith is gone, his body carried out of the chamber after 22 minutes of gas. The world watched, and the world will not forget. Elizabeth Sennett deserved more.
She deserved to grow old, to watch her children live full lives. She deserved love, not betrayal. Rest in peace, Elizabeth.
You married the wrong man, but you did not deserve the ending he gave you. And the nation, still reeling from the image of a man shaking in a mask, must now ask itself: what kind of justice is this?
