The United States executed its first federal inmate in 17 years this morning, putting to death Daniel Lewis Lee, a white supremacist convicted of murdering an Arkansas family of three, including an 8-year-old girl, in 1996. Lee, 47, was pronounced dead at 8:07 a. m.
Eastern Time inside the execution chamber at the U. S. Penitentiary in Terre Haute, Indiana, after a night of legal battles that reached the Supreme Court.

His final words, spoken moments before the lethal dose of pentobarbital was administered, were haunting: “I didn’t do it. I’ve made a lot of mistakes in my life, but I’m not a murderer. You’re killing an innocent man.”
The execution, carried out under the Trump administration’s resumption of federal capital punishment, ended a 17-year hiatus that had left federal death row silent since 2003. Lee was the first of several inmates scheduled to die in July 2020, but his case was among the most contentious, drawing opposition from the victims’ own family. Earlene Peterson, the mother of Nancy Mueller and grandmother of Sarah Powell, who were among the victims, pleaded with President Trump and the courts to spare Lee’s life.
“I can’t see how executing Daniel Lee will honor my daughter in any way,” she said publicly. “The government ain’t doing this for me because I would say no.” Her petition was denied without response from the White House.
The crime that led to Lee’s death sentence was brutal. On January 11, 1996, Lee and his accomplice, Chevie O’Brien Kehoe, broke into the home of William Mueller, a gun dealer and survivalist, near Tilly, Arkansas. They waited for the family to return, then restrained and interrogated them before killing William, Nancy, and 8-year-old Sarah.
The bodies were weighted down and dumped in the Illinois Bayou, where they were discovered six months later by a fisherman. The murder weapon and stolen property eventually led investigators back to Kehoe, who was identified as the mastermind. But while Kehoe was sentenced to three consecutive life terms, Lee received the death penalty.
The disparity has haunted the case for two decades. At trial, prosecutors argued Lee was a psychopath, relying on a psychological evaluation known as the Hare Psychopathy Checklist, which the government’s own psychologist later disavowed as unreliable. The judge who sentenced Lee, G.

Thomas Eisele, later wrote to the attorney general that “justice was not served in this particular case.” The lead prosecutor, Dan Stripling, also said withdrawing the death penalty would have been the correct decision. Lee’s lawyers argued that his co-defendant, Kehoe, was the architect of the murders, yet only the follower received death.
“It was obvious to us when Daniel got the death penalty why that was,” said Monica Vallette, Nancy Mueller’s niece, citing Lee’s SS bolt tattoos and missing eye as factors that swayed the jury.
Lee’s execution was delayed by a frantic series of court battles. On July 13, 2020, a federal judge blocked the execution due to concerns about the lethal injection protocol. The Supreme Court then overturned that block with a 5-4 vote early on July 14.
Lee was already strapped to the gurney when the final stay from the 8th Circuit was lifted at 7:36 a. m. His attorneys were not notified before the process began.
The execution chamber, a small green-tiled room with witness windows, contained a black telephone that a U. S. Marshal used to ask if anything impeded the execution.

Lee was accompanied by prison officials and a spiritual adviser described as an Appalachian Pagan minister.
Throughout his 21 years on death row, Lee renounced his white supremacist beliefs and maintained his innocence. His childhood was marked by seizures, instability, and a system that repeatedly failed to intervene. He was implicated in a prior murder at age 17 but escaped a sentence that sent his cousin to prison for life.
The pattern repeated with the Mueller murders: the mastermind got life, the follower got death. And the people who lost the most—the victims’ family—fought hardest to keep Lee alive. Earlene Peterson and her daughter, Monica Vallette, appeared in court and in the media, insisting the government was not acting in their name.
The Trump administration’s decision to resume federal executions drew sharp criticism from civil rights groups and legal experts. Attorney General William Barr announced the policy in July 2019, arguing that justice demanded accountability for the worst crimes. But critics pointed to the arbitrary nature of the federal death penalty, the racial disparities, and the risk of executing someone who might be innocent.
In Lee’s case, the physical evidence tying him directly to the murders was limited; he confessed to Gloria Kehoe, Chevie’s mother, but that testimony came from a witness with her own motivations. The serial numbers on stolen firearms provided a forensic link, but questions remained about who pulled the trigger on the 8-year-old.

Chevie Kehoe, the man who planned the operation, remains alive at ADX Florence, the most secure federal prison in the United States. His father, Kirby Kehoe, and brother Shane were later arrested in Arizona on weapons charges. The Mueller family is buried in small Arkansas cemeteries, their graves a testament to a tragedy that never found clean resolution.
Judge Eisele, who oversaw the trial, died in 2019, but his words echo: “The end result leaves me with the firm conviction that justice was not served.” Lead prosecutor Dan Stripling echoed that sentiment, saying withdrawing the death penalty would have been correct.
As the white supremacist conspiracy that fueled the murders unraveled in court, the legal system delivered a verdict that even its architects questioned. Daniel Lewis Lee was executed this morning, but the questions he left behind—about fairness, about the death penalty, about who truly pays for a crime—will not be silenced. His final claim, that he was an innocent man, now enters the historical record alongside the testimony of judges and prosecutors who said the system got it wrong.
The United States has resumed federal executions, but the price of that resumption may be a permanent scar on the pursuit of justice.
The execution was carried out under tight security, with a small group of witnesses including journalists and representatives of the victims’ family, though none of the Muellers chose to attend. Peterson said she could not bear to watch the state take another life, especially during the COVID-19 pandemic that had already cost her family so much. Her daughter Nancy was 32 when she died; Sarah would have turned 33 this year.
Instead, their names are etched on a headstone in Hector, Arkansas, alongside William Mueller, who was 52. The case that began with a fisherman’s line snagging a body in the bayou has now closed with a lethal injection in Indiana, but the deeper currents of doubt and division remain.