Mitch Morrissey worked in the Denver district attorney’s office for more than 30 years, including three terms as the elected district attorney (2005 to 2017). He is an international expert on the u...ver maisMitch Morrissey worked in the Denver district attorney’s office for more than 30 years, including three terms as the elected district attorney (2005 to 2017). He is an international expert on the use of DNA technology in criminal prosecutions and exonerating innocent people. After retiring from the district attorney’s office, he co-founded United Data Connect, a company that helps solve cold cases using DNA and genetic genealogy. Mitch is a fourth-generation Colorado native.ver menos