A significant breakthrough in a 24-year-old cold case led to the arrest of Gary Durrance, 73, for the murder of Sherry Holtz in December 1999 in the City of Sanford. Holtz was found deceased in a wooded area, and a knife with trace DNA was recovered at the scene. The case remained unsolved despite extensive investigation at the time, including numerous interviews and evidence analysis. Read: Without A Trace: Florida Mom, Gina Ferraiolo, Vanishes While Walking Her Dog Advancements in DNA technology allowed investigators to re-examine the evidence, ultimately linking Durrance, Holtz’s former boy…