On the night of July 14, 1881, Sheriff Pat Garrett sat in a darkened bedroom at Fort Sumner, New Mexico Territory, speaking quietly with Pete Maxwell, the son of a prominent rancher. Garrett had come hunting for Billy the Kid, the most wanted outlaw in the American West, and Maxwell was helping him piece together where the fugitive might be hiding. Just after midnight, a figure stepped into the room. The light was poor, and Billy the Kid could not see who was waiting in the shadows.
He drew his revolver and asked in Spanish, who is it? Recognizing the voice, Garrett fired. One bullet struck the outlaw in the chest, and within moments, the 21-year-old whose name had already become legend lay dead on the floor. For more than a century, that was where the story ended.
But questions about what really happened that night, and whether the man buried at Fort Sumner was truly Billy the Kid, have never fully disappeared. The doubts have fed one of the most enduring mysteries of the American frontier. Billy the Kid was born Henry McCarty in New York City, probably in 1859, to Irish Catholic parents. His father died when he was young, and his mother, Catherine, remarried a man named William Antrim.
The family drifted westward, eventually settling in Silver City, New Mexico Territory. When Catherine fell ill with tuberculosis, her husband left, and she died in September 1874, leaving Henry an orphan at 14. A boarding house owner took him in for a time, but the stability did not last. In September 1875, he was arrested for stealing food, then days later for another theft connected to a laundry business.
He escaped custody soon after, and a local newspaper published its first report on the young outlaw. He drifted into Arizona Territory, working on ranches and moving through gambling halls until he fell in with a Scottish-born drifter named John Mackie. Together they stole horses from military stock, and the young McCarty, small and boyish, picked up the nickname Kid Antrim. By 1877 he was using the name William H.
Bonney. That August, a confrontation at a saloon in Bonita, Arizona, changed his path. A blacksmith named Frank Cahill, who had a history of harassing Bonney, got into a physical struggle with him. Bonney drew his revolver and fired.
Cahill died from the wound. Bonney fled but returned days later in the belief he could explain himself. He was detained at Camp Grant, but escaped before formal law enforcement arrived, stealing a horse and riding east toward New Mexico. The journey nearly killed him.
Apache raiders took his horse, and he walked much of the way before reaching Fort Stanton exhausted and starving. A friend’s mother nursed him back to health, and once recovered, he joined a group of cattle rustlers preying on the herds of rancher John Chisum. In 1878, Bonney went to work as a cowboy for John Tunstall, an English rancher whose business interests put him in direct competition with the powerful Murphy-Dolan faction that dominated Lincoln County. The rivalry was about money, government beef contracts, and control of the local mercantile trade.
By February, tensions had boiled over. Sheriff William Brady organized a posse to seize Tunstall’s cattle under a court order tied to a debt. On February 18, Tunstall rode out to confront the men and was fatally shot. His death transformed a bitter business dispute into an open armed conflict known as the Lincoln County War.
Bonney and another ranch hand signed affidavits accusing Brady’s posse of murder. Brady responded by arresting them, but a deputy U. S. marshal sympathetic to Tunstall’s side intervened and released them.
Bonney joined the Lincoln County Regulators, a group formed to avenge Tunstall’s death. Over the following weeks, the county descended into violence. Several men were killed in clashes, including Regulators leader Dick Brewer at Blazers Mill. Warrants were issued against members of both factions, and Bonney was eventually charged in connection with the deaths of Sheriff Brady and his deputy.
By mid-July 1878, the conflict reached its peak. Bonney and Alexander McSween, Tunstall’s attorney and business partner, led between 50 and 60 armed supporters into the town of Lincoln. They fortified positions in several buildings, with McSween’s house as the main defensive point. After several days of fighting, the newly appointed sheriff called on Colonel Nathan Dudley, commander of nearby Fort Stanton, for support.
Dudley initially refused to involve federal troops but later entered Lincoln with soldiers. Though they did not officially fight, their presence favored the Murphy-Dolan faction by limiting the Regulators’ options. On July 19, the house was set on fire. Bonney and several others broke out and escaped through the confusion.
McSween was killed. The Battle of Lincoln effectively ended organized resistance and brought the largest phase of the war to a close. Bonney remained a wanted man. Territorial Governor Lew Wallace issued an amnesty proclamation that November, but it excluded those already indicted for crimes, which meant Bonney did not qualify.
In March 1879, after the killing of attorney Houston Chapman in Lincoln, Bonney wrote to Wallace offering testimony in exchange for amnesty. They met secretly, and Wallace promised protection and possible clemency if Bonney cooperated. Bonney surrendered, testified, and waited. No pardon came.
On June 17, 1879, he escaped from the Lincoln County Jail and returned to life as a fugitive. For the next year and a half, he avoided capture, though his legend kept growing. Newspapers across the Southwest spread stories of his encounters, including a famous confrontation at a Fort Sumner saloon where, according to later retellings, he cleverly rotated the cylinder of a rival’s revolver so it would not fire. By late 1880, Governor Wallace had offered a $500 reward for his capture.
Sheriff Pat Garrett, who had taken office in Lincoln County, tracked Bonney and his companions to a remote structure known as Stinking Springs. After a siege in which one of the outlaws was killed, Garrett captured Bonney and three others on December 23. The prisoners were transported to Las Vegas, where large crowds gathered to see the famous outlaw. Interviewed in jail, Bonney reportedly remained cheerful, saying, what’s the use of looking on the gloomy side of everything?
The laugh’s on me this time. In April 1881, Bonney stood trial for the murder of Sheriff Brady. After two days of testimony, the jury found him guilty, and the judge sentenced him to hang. It was the only successful murder conviction connected to any participant in the Lincoln County War.
He was held on the upper floor of the courthouse in Lincoln under the guard of deputies James Bell and Bob Olinger. On the evening of April 28, Olinger escorted other prisoners across the street for a meal, leaving Bell alone with Bonney. Bonney asked to use the outhouse, and on the way back upstairs, he slipped free from Bell’s control near a blind corner in the stairway. He grabbed Bell’s revolver and shot the deputy as he tried to flee.
Bonney then retrieved Olinger’s shotgun from Garrett’s office. When Olinger rushed back to the courthouse, Bonney fired from an upstairs window and killed him. Still wearing leg irons, Bonney took an axe, broke the restraints, grabbed a horse, and rode out of Lincoln. For nearly three months, he evaded capture.
Then, on the night of July 14, 1881, Garrett arrived at Fort Sumner with two deputies. He went to Maxwell’s bedroom to discuss where Bonney might be. Just before midnight, Bonney walked in. The room was too dark for him to see Garrett, and he was caught off guard.
Garrett fired twice, striking him once in the chest. A coroner’s jury assembled within hours and identified the body as Billy the Kid. He was buried the next day at Fort Sumner beneath a simple wooden marker. Garrett expected to collect the $500 reward, but the acting governor initially refused to pay.
Public support in New Mexico was strong enough that residents of several towns raised thousands of dollars for him on their own, and the territorial legislature eventually approved the official payment more than a year later. Hoping to defend his reputation against accusations of ambush and questions about the shooting, Garrett co-wrote a book with journalist Marshall Upson, The Authentic Life of Billy the Kid, published in 1882. It sold poorly at first but later became one of the most influential sources on the outlaw’s life. The questions never stopped.
Over the decades, several men came forward claiming to be Billy the Kid. The most famous was Brushy Bill Roberts of Texas, who in 1948 petitioned the New Mexico governor for a pardon based on the alleged deal with Lew Wallace. The request was rejected. Another claimant, John Miller of Arizona, drew little attention during his lifetime, but decades after his death, his remains were exhumed in 2005 for DNA testing.
The results were inconclusive due to contamination and degraded evidence. No scientific test has ever definitively proven whether Billy the Kid survived past July 1881. Forensic efforts continued into the 2000s. Investigators proposed exhuming the remains of Billy the Kid’s mother for DNA comparison, but as of 2012, that had not been done.
A legal battle over records related to the investigation ended with the release of 133 pages of documents in April 2012, which confirmed that testing had occurred but produced no conclusive answer. In 2014, a researcher was awarded punitive damages in the case, though the decision was later overturned, and Lincoln County reportedly spent nearly $300,000 in legal expenses. In 2015, a historian filed court petitions asking the state of New Mexico to issue an official death certificate for Billy the Kid. The effort reflected a larger goal: establishing a clear legal and historical record for one of the Old West’s most famous figures.
Historians recognize only one authenticated photograph of Billy the Kid, a tintype taken around late 1879 or early 1880. It sold at auction in 2011 for approximately $2. 3 million. A second photograph, discovered in a California memorabilia shop in 2010 and claimed to show Billy the Kid playing croquet with the Regulators, sparked intense debate over whether the figures in the image were genuine.
Experts remain divided, and state historians have said the evidence is insufficient to confirm the identification. Even the grave site has drawn trouble. The original gravestone, donated in 1940, was stolen in 1981 and recovered days later in California. Vandals knocked the memorial over in 2012.
Most historians still accept that Billy the Kid died at Fort Sumner in 1881, relying on contemporary testimony and records. But the gaps in the evidence have proven impossible to close completely. More than a century later, the story refuses to settle into certainty, and the mystery continues to hold a firm place in American folklore.