From Oklahoma's statute to the Lee injunction.

The Clayton Lockett botched execution

Clayton Lockett writhes and speaks on the gurney for 43 minutes after Oklahoma injects an untested midazolam cocktail. The televised failure triggers a political scramble across the death-penalty states for a 'humane' backup method. Oklahoma legislator Mike Christian visits a British euthanasia advocate and comes home with a proposal: nitrogen.

Suffocation by Design, ch. 1.0

HB 1879 — Oklahoma authorizes nitrogen hypoxia

Governor Mary Fallin signs HB 1879, making Oklahoma the first jurisdiction in world history to authorize execution by nitrogen gas. The statute names nitrogen as a fallback if lethal injection is unavailable or held unconstitutional. No protocol exists; no equipment exists; no state has ever done it.

Okla. Stat. tit. 22, § 1014

Mississippi adds nitrogen to its execution statute

Mississippi becomes the second state to statutorily authorize nitrogen hypoxia — again, as a fallback with no protocol behind it.

SB 272 — Alabama authorizes nitrogen and opens the election window

Governor Kay Ivey signs SB 272. Alabama death-row prisoners are given a narrow window to elect nitrogen instead of lethal injection. Many elect it on the advice of lawyers who reason that a method the state cannot yet perform is a method that will not kill their clients. The election is irrevocable.

Ala. Code § 15-18-82.1

Alabama's botched lethal-injection attempt on Alan Miller

Alabama straps Alan Miller to a gurney in a 'crucifixion' position for approximately 90 minutes, repeatedly puncturing his arms, hands and feet, considering a neck central line, and finally abandoning the attempt when the death warrant expires.

Miller v. Hamm — settlement

Alabama settles Miller's § 1983 suit by agreeing it will never again try to execute him by lethal injection. Any future execution of Miller will be by nitrogen hypoxia — a method that still has no written protocol.

Alabama's botched lethal-injection attempt on Kenneth Smith

Alabama fails to establish IV access on Kenneth Smith before his warrant expires. He becomes the second person in modern American history to survive an execution attempt. He will be the first person Alabama tries to kill with nitrogen.

Alabama publishes its nitrogen protocol

ADOC releases a heavily redacted nitrogen-hypoxia protocol — a full-face industrial respirator mask fed by pure nitrogen through a supply line. Consulting experts, mask specifications, gas-flow rates, and contingency procedures are blacked out. Eighth Amendment challenges begin immediately.

Smith v. Hamm — district court denies injunction

Judge R. Austin Huffaker Jr. denies Kenneth Smith's preliminary injunction. Holds that Smith has not shown a substantial risk of severe pain under Glossip and Bucklew and that his proposed alternatives — a modified nitrogen protocol and firing squad — are not 'feasible and readily implemented.' Calls the evidence 'speculation, at best scientific controversy.'

Smith v. Hamm — Eleventh Circuit affirms, 2-1

A 2-1 panel affirms. Judge Jill Pryor's dissent — a warning against experimenting on a human being with no world data, no medical consensus, and a mask design borrowed from industrial safety — becomes the moral spine every later challenger will cite.

Execution № 1 — Kenneth Eugene Smith

The first person in world history put to death by nitrogen hypoxia. Witnesses describe several minutes of thrashing, shaking, and gasping on the gurney. Alabama calls the execution 'textbook.' Rev. Dr. Jeff Hood, Smith's spiritual advisor, calls it what it is: suffocation by design.

Miller v. Hamm (2024) — challenge denied

Judge Huffaker denies Alan Miller's Eighth Amendment challenge despite the observable record of Smith's execution. The court characterizes Smith's convulsions as within the state's expected physiological response.

Execution № 2 — Alan Eugene Miller

Alabama's second nitrogen execution — of the man the state had already tortured once with a needle. Witnesses again report visible shaking, gasping and prolonged distress. The 'textbook' claim is repeated.

Grayson v. Hamm — challenge denied

Judge Huffaker rejects Carey Grayson's § 1983 challenge citing Smith and Miller as proof of substantial risk. Corrections Commissioner John Q. Hamm publicly dismisses visible distress in nitrogen executions as 'all show.'

Execution № 3 — Carey Dale Grayson

Grayson curses the warden and raises both middle fingers as the nitrogen begins to flow. His body pulls against the restraints for more than eight minutes. Defiance, normalization, and the third nitrogen death.

Execution № 4 — Demetrius Terrell Frazier

Transferred to Alabama in 2011 under an interstate custody agreement from Michigan — a state that abolished the death penalty in 1846. Michigan Governor Gretchen Whitmer declines to invoke the agreement to bring him home. Frazier v. Hamm rejects both the transfer challenge and the protocol challenge.

Hoffman v. Westcott — Judge Dick blocks the execution

Chief Judge Shelly D. Dick issues the first substantial federal judicial safeguard against nitrogen hypoxia — on both Eighth Amendment and RLUIPA religious-exercise grounds. Jessie Hoffman, a practicing Buddhist, cannot exercise a religion built around breath while the state replaces the air with poison.

Hoffman v. Westcott — Fifth Circuit reverses

The Fifth Circuit vacates Judge Dick's injunction. The Supreme Court declines to intervene 5-4 — Sotomayor, Kagan, Jackson and Gorsuch noting dissent. The first time a Justice from the Court's conservative wing publicly breaks on a nitrogen case.

Execution № 5 — Jessie Hoffman Jr.

Louisiana's first nitrogen execution — and the state's first execution of any kind in 15 years. The Alabama method has crossed state lines.

Hunt v. Hamm — pro se filings denied

Chief Judge Emily C. Marks denies Gregory Hunt's pro se filings challenging his warrant and the protocol. Hunt, 35 years on the row, tells the AP he has 'no pity party.'

Execution № 6 — Gregory Hunt

Alabama's sixth nitrogen execution. Nitrogen hypoxia as bureaucratic routine — the state pushes to match its 2024 total, and the courts do not slow the pace.

West v. Hamm — challenge denied over victim's family objection

Judge Marks denies Geoffrey West's challenge despite an unusual clemency posture: Will Berry, son of West's victim, publicly forgives him and personally delivers a clemency petition to Governor Kay Ivey. Ivey does not intervene.

Execution № 7 — Geoffrey Todd West

Commissioner Hamm claims West's execution showed 'the least movement that we've seen.' The claim will collapse a month later under the Boyd account.

Boyd v. Hamm — Sotomayor dissents from denial of stay

Justice Sonia Sotomayor's dissent — joined by Justice Jackson — catalogs the record of prolonged, observable suffering in every previous nitrogen execution and warns the Court against ratifying the method by silence. The majority lets the execution proceed.

Execution № 8 — Anthony Boyd

The longest yet. Witnesses independently describe convulsions and gasping continuing well past every prior timeline. The eighth — and, as of this writing, final — nitrogen execution in American history.

Lee v. Hamm — the bench trial and factual findings

The first full trial in the country on the constitutionality of nitrogen hypoxia. After days of expert testimony, autopsies and demonstrations, Chief Judge Emily C. Marks finds — as a matter of fact — that Alabama's protocol inflicts one to three minutes of severe, conscious air hunger. She then holds that this level of suffering does not violate the Eighth Amendment and permits the execution. The candor of that finding becomes the instrument of its undoing.

Lee v. Hamm — Eleventh Circuit reverses (per curiam)

A per curiam panel accepts every one of Judge Marks's factual findings and reaches the opposite legal conclusion — the first federal appellate ruling that execution by nitrogen most likely violates the Eighth Amendment. 'Presents a substantial risk of serious harm — severe pain over and above death itself.'

Lee v. Hamm — the permanent injunction

On remand, Judge Marks holds that firing squad is a feasible, readily implemented alternative that would significantly reduce the risk. She permanently bars Alabama from using nitrogen hypoxia to execute Jeffery Lee — the first permanent injunction against a method of execution in American history.

Lee v. Hamm — the Supreme Court declines to vacate

Alabama files an emergency application to vacate the injunction. For the first time in a modern method-of-execution shadow-docket application, the Supreme Court does not step in. Jeffery Lee survives. Alabama abandons the method that Alabama invented.