In November of 2010, Sherry Black was senselessly murdered in the bookstore she owned and operated in South Salt Lake. While a few clues were left behind, the homicide is still largely a mystery. New DNA technology has allowed Sheriff Rosie Rivera and the Unified Police Department to get an idea of what the suspect may look like, and they are asking the public for any additional information they may have. A $250,000 reward has been posted for information that leads to the arrest and conviction of the person who committed the crime.