A 9,000 year-old case of human decapitation has been found in the rock shelter of Lapa do Santo in Brazil, according to a study published September 23, 2015 in the open-access journal PLOS ONE by André Strauss from the Max Planck Institute for Evolutionary Anthropology, Germany and colleagues.
An archaeological site called Lapa do Santo, located in east-central Brazil, contains evidence of human occupation dating back to ~12,000 years ago. In 2007, researchers found fragments of a buried body, Burial 26, including a cranium, jaw, the first six cervical vertebrae, and two severed hands at the site. They dated the remains back to ~9,000 years ago using accelerator mass spectrometry. The researchers found amputated hands laid over the face of the skull arranged opposite each other and observed v-shaped cut marks on the jaw and sixth cervical vertebra.