A 5,300-year-old iceman was shot in the back, and the arrowhead is still there

Two German hikers descending from a mountain pass near the Similaun glacier in the Otztal Alps in September 1991 spotted a body half-frozen in melting ice and assumed they had stumbled on a modern climbing accident. Instead, they had found a mummified man who died roughly 5,300 years earlier, preserved so completely by ice and cold, dry wind that his skin, organs, clothing and even the contents of his stomach survived into the present day, along with the weapon that killed him. He stood about 5 feet 3 inches tall and was likely in his mid-40s at death, elderly by the standards of his era.

A Body Preserved by Accident, Not Design

Unlike the deliberately embalmed mummies of ancient Egypt, the man later nicknamed Otzi was preserved through pure environmental chance. He died at high altitude, his body was quickly covered by snow and ice, and a glacier formed over the site, sealing him away from scavengers, bacteria and light for millennia. Radiocarbon dating placed his death between 3350 and 3105 BC, making him Europe’s oldest known natural human mummy and giving researchers an intact snapshot of Copper Age life that no burial site could match. His equipment, including a copper axe, a longbow, a quiver of arrows and a woven grass cape, offered material evidence of tools and materials previously known only from fragments. The axe blade was nearly pure copper, and its analysis pushed back the timeline for when metalworking of this sophistication was practiced in the region, making Otzi one of the clearest physical links to Europe’s early Copper Age.

An Arrowhead That Rewrote the Cause of Death

For roughly a decade after his discovery, researchers assumed Otzi had died of exposure while crossing the mountains. That theory collapsed in 2001, when X-rays and a CT scan revealed a flint arrowhead lodged in his left shoulder, invisible during earlier examinations. A matching tear in his coat and a roughly 2-centimeter entry wound on his back confirmed the arrow had struck him from behind. The arrow had severed his subclavian artery, the major vessel running beneath the collarbone toward the arm, and researchers concluded he bled out within minutes of being hit.

The Shaft Was Removed, but the Head Stayed Behind

Further examination found that the wooden arrow shaft had been removed, likely by Otzi himself or a companion, before he died, snapping the embedded flint head off in the process. That detail matters because it shows someone attended to the wound, even briefly, rather than the arrow simply lodging and being left untouched. Combined with a deep cut on his hand consistent with a defensive knife wound and bruising suggesting a struggle, researchers have argued the final hours involved a violent confrontation rather than a solitary accident, though the identity and motive of his attacker remain unknown.

What His Last Meal and Stomach Contents Show

Analysis of Otzi’s digestive tract found a meal eaten not long before death, made up of dried meat from ibex and red deer along with einkorn wheat, suggesting he had access to both hunted game and cultivated grain. Pollen preserved in his gut also pointed to the season of death, indicating he likely died in spring or early summer. Researchers studying his stomach contents and the layered order of his last meals have used the findings to reconstruct his final one to two days, including apparent movement between different altitude zones shortly before the fatal encounter. His gut also contained whipworm eggs, and among his equipment were pieces of birch fungus strung on a leather thong, a species with known antibiotic and anti-parasitic properties that some researchers believe he carried as early medicine.

Tattoos, Tools and a Genetic Portrait

Otzi’s skin carries more than 60 tattoos, simple lines and crosses made by rubbing charcoal into small cuts, several of them clustered near joints affected by arthritis, which some researchers interpret as an early form of therapeutic marking rather than decoration. Genetic analysis of his remains has revealed details about his ancestry, eye color, blood type and even a predisposition toward cardiovascular disease, along with confirmation that he carried Lyme disease bacteria, making him the earliest documented case. A recent clinical review of his injuries, published in a Nature-affiliated journal, revisited the original imaging data and confirmed the shoulder wound as the immediate cause of death while adding detail on the extent of internal bleeding.

A Body Still Under Study Decades Later

More than three decades after his discovery, Otzi remains housed at the South Tyrol Museum of Archaeology in Bolzano, Italy, kept in a specialized cold chamber that mimics glacial conditions to prevent decomposition. Researchers continue to request tissue and bone samples for new lines of study, from his gut microbiome to the specific plants used in his equipment, and the flint arrowhead that killed him remains embedded in his shoulder, a permanent piece of physical evidence in a case that will never go to trial.

This article was produced with the assistance of AI and reviewed by an editor.

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