The ex-husband of Liewatha, Sen. Elizabeth Warren, co-founded a DNA testing company and wrote one of the first computer codes for making genetic comparisons, The Washington Examiner reports. Jim Warren was involved in the kinds of testing that Warren used to prove [disprove] she is a Native-American. He was a co-founder of FamilyTreeDNA and worked with Carlos Bustamante, the Stanford geneticist who tested her using Mexican, Peruvian, and Columbian DNA. His conclusion was that there’s a “strong suggestion” Warren had Native-American ancestry 6 to 10 generations ago. Jim Warren died in 2006. Although they had two children together, there was no love lost between them.