Scientists say that her organs are intact and its as if she had died just a few weeks ago. From testing the samples of her hair they could determine the type of diet she was on before her death. This lead to the discovery that the Incan fattened their children before killing them. Months or even years before the sacrifice pilgrimage these children were given diets which were those of the elite, consisting of maize and animal proteins.
Judging from the condition of the body, it is believed that she was drugged and left to die in the mountains. It would not have taken much time for her to die due to the high exposure. The Incan high priests took their victims to high mountaintops for sacrifice. As the journey was extremely long and arduous, especially so for the younger victims, coca leaves were fed to them to aid them in their breathing so as to allow them to reach the burial site alive. Upon reaching the burial site, the children were given an intoxicating drink to minimize pain, fear, and resistance, then killed them either by strangulation, a blow to their head or by leaving them to lose consciousness in the extreme cold and die of exposure.
Many Inca children were offered as sacrifice during or after important events, such as the death of the Sapa Inca(who was the emperor) or during a famine. These sacrifices were known as capacocha.