DIED
LeRoy Walker, 93, first black president of the U.S. Olympic Committee; after an esteemed career as a track-and-field coach, he served as chancellor of N.C. Central University.
DIED
George Rathmann, 84, one of the fathers of the biotech industry; as the first CEO of Amgen, he helped build it into the world's largest biotech company.
RETIRED
Pat Summitt, Hall of Fame women's basketball coach at the University of Tennessee, after 38 years, 1,098 wins and eight NCAA championships. Last year she announced she suffers from early-onset Alzheimer's disease.
DIED
Greg Ham, 58, saxophone and flute player for the Australian band...
