Wikipedia says:

Ötzi the Iceman is the modern name of a well-preserved natural mummy of a man from about 3300 BC (53 centuries ago).The mummy was found in 1991 in the Schnalstal glacier in the Ötztal Alps, near the border between Austria and Italy. He is Europe’s oldest natural human mummy, and has offered an unprecedented view of Copper Age Europeans.

By current estimates, at the time of his death Ötzi was approximately 1.65 metres (5 ft 5 in) tall, weighed about 50 kilograms (110 lb) and was about 45 years of age.

Analysis of Ötzi’s intestinal contents showed two meals (the last one about eight hours before his death), one of chamois meat, the other of red deer meat. Both were eaten with some grain as well as some roots and fruits. The grain from both meals was a highly processed einkorn wheat bran, quite possibly eaten in the form of bread. There were also a few kernels of sloes (small plumlike fruits of the blackthorn tree).

Pollen in the first meal showed that it had been consumed in a mid-altitude conifer forest, and other pollens indicated the presence of wheat and legumes, which may have been domesticated crops. Also, pollen grains of hop-hornbeam were discovered. The pollen was very well preserved, with even the cells inside still intact, indicating that it had been fresh (a few hours old) at the time of Ötzi’s death, which places the event in the spring. Interestingly, einkorn wheat is harvested in the late summer, and sloes in the autumn; these must have been stored since the year before.

High levels of both copper particles and arsenic were found in Ötzi’s hair. This, along with Ötzi’s copper axe which is 99.7% pure copper, has led scientists to speculate that Ötzi was involved in copper smelting.

Ötzi apparently had whipworm, an intestinal parasite. His fingernail (only one was found) shows three Beau’s lines indicating he was sick three times in the six months before he died. The last incident, two months before he died, lasted about two weeks.

Ötzi had approximately 57 carbon tattoos consisting of simple dots and lines on his lower spine, behind his left knee, and on his right ankle. Using X-rays, it was determined that the Iceman may have had arthritis in these joints. It has been speculated that the tatoos may be related to acupuncture.

In 2001 X-rays and a CT scan revealed that Ötzi had an arrowhead lodged in one shoulder when he died, and a matching small tear on his coat. The discovery of the arrowhead prompted researchers to theorize Ötzi died of blood loss from the wound, which would likely have been fatal even if modern medical techniques had been available. Further research found that the arrow’s shaft had been removed before death, and close examination of the body found bruises and cuts to the hands, wrists and chest and cerebral trauma indicative of a blow to the head. One of the cuts was to the base of his thumb that reached down to the bone but had no time to heal before his death. Currently it is believed that death was caused by a blow to the head, though researchers are unsure if this was due to a fall, or from being struck with a rock by another person. DNA analysis revealed traces of blood from four other people on his gear: one from his knife, two from the same arrowhead, and a fourth from his coat. Interpretations of the findings were that Ötzi killed two people with the same arrow, and was able to retrieve it on both occasions, and the blood on his coat was from a wounded comrade he may have carried over his back. Ötzi’s unnatural posture in death (frozen body, face down, left arm bent across the chest) suggests that the theory of a solitary death from blood loss, hunger, cold and weakness is untenable. Rather, before death occurred and rigor mortis set in, the Iceman was turned on to his stomach in the effort to remove the arrow shaft.

The DNA evidence suggests that he was assisted by companions who were also wounded; pollen and food analysis suggests that he was out of his home territory. The copper axe could not have been made by him alone. It would have required a concerted group tribal effort to mine, smelt and cast the copper axe head. This may indicate that Ötzi was actually part of an armed raiding party involved in a skirmish, perhaps with a neighboring tribe, and this skirmish had gone badly. It may also indicate that he was ambushed or attacked by a rival tribe’s raiding party on his way to deliver the axe. It is suggested that he may have survived the arrow attack, but died in a Tribal fight.