the absence of women among the local skeletons meant that they were regarded as somehow special, thus they were spared execution and captured instead. The capture of women may have indeed been the primary motive for the fierce conflict between the men. Other speculations about the reasons for violence among Linear Pottery Culture settlements in Neolithic Europe include vengeance, conflicts over land and resources, and kidnapping of slaves. Some of these theories related to the lack of resources are supported by the discovery that various fortifications bordering indigenously inhabited areas appear to have not been in use for very long. Mass burial site at Schletz was also fortified, which serves as evidence of violent conflict among tribes and means that these fortifications were built as a form of defense against aggressor. The massacre of Schletz occurred at the same time as the massacre at Talheim and several other massacres. More than 200 Neolithic people were killed during the massacre in the Linear Pottery settlement area of Schletz 7000 years ago. More recently, a similar site was discovered at Schöneck-Kilianstädten, with the remains of the victims showing "a pattern of intentional mutilation". While the presence of such massacre sites in the context of Early Neolithic Europe is undisputed, diverging definitions of "warfare proper" (i.e. planned campaigns sanctioned by society as opposed to spontaneous massacres) has led to scholarly debate on the existence of warfare in the narrow sense prior to the development of city states in 20th-century archaeology. In the summary of Heath (2017), accumulating archaeology has made it "increasingly harder" to argue for the absence of organised warfare in Neolithic Europe. During the period of expansion of hunter-gatherer groups associated with the Pitted Ware culture in southern Scandinavia, the Funnelbeaker farmers constructed a number of defensive palisades, which may mean that the two peoples were in conflict with each other. There is archaeological evidence of high levels of violence among the people of the Pitted Ware culture. The 8500-year-old Kennewick Man, a prehistoric Paleoamerican man, and Ötzi, who lived and died in the European Alps some 5,200 years ago, were probably killed in warfare. Warfare in pre-Columbian North America has served as an important comparandum in the archaeological study of the indirect evidence for warfare in the Neolithic. A notable example is the massacre at the Crow Creek Site in South Dakota (14th century). Chalcolithic to Bronze Age The onset