Pat Summitt, the winningest coach in NCAA basketball history, has died at age 64. <br /> <br />Summitt's health had reportedly worsened recently. Her family previously told the Knoxville News Sentinel that they were "preparing for the worst." <br /> <br />The legendary University of Tennessee basketball coach stepped down as the Lady Vols' coach in 2012, several months after announcing she'd been diagnosed with early onset dementia.