Joe DeNucci, a former world class middleweight boxing contender who became a politician and the longest-serving state auditor in Massachusetts history, has died at age 78. DeNucci, who had suffered from Alzheimer’s disease, died Friday at his home in Newton, where his death was confirmed by the Andrew J. Magni & Son Funeral Home. In his boxing days he fought quality opponents including Emile Griffith, a world champion in multiple weight classes, before turning to the equally rough-and-tumble world of state politics. As a Democrat, he served as a state representative and later held the office of state auditor for...