On January 6, 1939, a 23-year-old man named Joe Arridy was led into the gas chamber at the Colorado State Penitentiary. He was smiling. He held a toy train in his hands — a gift from the warden who believed he was innocent. Joe didn’t understand what was about to happen. He had the mental age of a six-year-old child, and the state of Colorado was about to execute him for a murder he almost certainly did not commit.
Joe Arridy was born on April 29, 1915, in Pueblo, Colorado, to Syrian immigrants Henry and Mary Arridy. He was one of five children. From his earliest years, Joe struggled to learn and to understand things that other children grasped easily. By the time he was six, his parents knew something was different about him. In the early 20th century, families had almost no support when it came to raising a child with an intellectual disability. There were no clear answers, and very little help from society or the government. When Joe was ten years old, his parents sent him to the State Home and Training School for Mental Defectives in Grand Junction, Colorado. He stayed there for years. Despite his limitations, people who knew Joe described him as gentle, friendly, and cheerful. He loved simple pleasures — playing with toys, listening to music, eating ice cream. He was not a troubled person. He was not a violent person. He was, by all accounts, a kind and innocent young man.
In August 1936, a brutal crime shook Pueblo. A 15-year-old girl named Dorothy Drain was attacked in her home, struck on the head, and killed. Her younger sister Barbara was also attacked but survived. The community was horrified, and police faced enormous pressure to find the killer fast. Around the same time, Joe had wandered away from the state home — something he had done before. He was eventually found in Cheyenne, Wyoming, by Sheriff George Carroll. During questioning, Carroll claimed that Joe confessed to killing Dorothy Drain. But Joe’s so-called confession was riddled with inconsistencies. Key details didn’t match the actual crime scene. And critically, Joe had a measured mental age of around six years old. He almost certainly did not understand what he was being asked, or what it meant to say yes to a sheriff’s questions.
Joe was brought back to Colorado and put on trial beginning October 12, 1936. His attorney, Joseph J. McGee, argued forcefully that Joe lacked the mental capacity to have planned or carried out such a crime. McGee pointed to the absence of physical evidence connecting Joe to the scene and stressed that his client did not understand the proceedings happening around him. None of it was enough. The jury found Joe guilty and sentenced him to death. What made the verdict even harder to justify was what was happening in a parallel case. A man named Frank Aguilar — who had worked for Dorothy Drain’s father — had also been arrested for the same crime. Aguilar was found with a blood-stained hammer. He confessed to the attack. He too was sentenced to death. Aguilar’s confession pointed directly to a single killer who was not Joe Arridy, yet the court moved forward with Joe’s execution anyway.
Joe’s years on death row were unlike those of any other condemned prisoner. He did not know he was going to die. He did not understand what death row meant. Prison Warden Roy Best took a genuine liking to Joe and came to believe strongly in his innocence. Best called Joe “the happiest prisoner on death row.” Joe spent his days playing with a toy train set, drawing pictures, and eating ice cream whenever it was offered. He smiled constantly. Other prisoners and guards noticed his childlike joy, and many of them were deeply uncomfortable with what was coming.
Warden Best did more than just feel sympathy — he acted on it. He wrote letters, supported appeals, and pushed for Joe’s sentence to be commuted. Many others joined the effort, arguing that executing a man with the mental capacity of a young child was both unjust and morally indefensible. They also pointed to the unreliable confession and the overwhelming evidence that Frank Aguilar was the real killer. Colorado Governor Teller Ammons received multiple appeals but declined to intervene. Every effort to save Joe failed.
On the day of his execution, Joe ate his last meal — ice cream, his favorite. Warden Best had given him the toy train that Joe carried with him to the end. Before entering the gas chamber, Joe gave the train to a fellow prisoner. He walked in calm and smiling, with no apparent fear, because he genuinely did not grasp what was about to happen. Joe Arridy died on January 6, 1939, in the gas chamber at Canon City.
After his death, Joe was buried in a small cemetery outside Canon City known as Woodpecker Hill, where many prisoners from the state penitentiary were laid to rest. His case did not disappear. Over the following decades, historians, lawyers, and advocates continued to examine what had gone wrong. The evidence against Joe had been thin from the start. His confession was extracted from a man who couldn’t understand the questions being asked. Frank Aguilar had confessed to the very same crime and was executed for it. There was no physical evidence tying Joe to the scene.
The push to formally clear Joe’s name gained serious momentum in the 2000s. Attorneys and historians built a detailed record of the failures in his case — the unreliable confession, the lack of evidence, the presence of the actual killer — and brought it to the state. In January 2011, Colorado Governor Bill Ritter granted Joe Arridy a posthumous pardon, making it an official state acknowledgment that Joe was innocent and should not have been executed. It was the first posthumous pardon in Colorado’s history.
Joe’s case is not an isolated accident of history. It exposes specific, systemic failures: police who pressured a confused man into a false confession, a court that ignored glaring evidence of innocence, and a system that had no meaningful protections for people with intellectual disabilities. The state executed a man who couldn’t understand his own trial, while the man who actually committed the crime also sat on death row in the same prison.
Joe Arridy spent his final years on earth playing with a toy train, eating ice cream, and smiling at the guards who walked him to his death. He was buried in a numbered grave far from his family. It took 72 years and a formal pardon for the state of Colorado to admit what many people knew all along — that Joe Arridy was innocent, and that what happened to him was a profound failure of justice.
