Fifty-six years after a Florida milkman vanished after doing his route, the mystery of his murder has been solved, closing one of the oldest cold casesA murderous mystery has finally been solved as fifty-six years after the truth behind a Florida milkman's death has been uncovered. The man failed to return home after his rounds, and now the mystery has been solved, closing the oldest cold case in Indian River County Sheriff’s Office history. Two people who say the suspect confessed to them helped investigators finally understand who killed Hiram “Ross” Grayam, a decorated World War II veteran who...