 Fitness guru Richard Simmons, known for his unrelenting positivity toward his audience, died at his Los Angeles home Saturday at the age of 76. ABC's Chris Connolly has more on Richard's life and advocacy. Richard Simmons was America's most popular and irrepressible fitness advocate, an energizer bunny of ceaseless encouragement. Richard Simmons' concern for the health of his public was very real. His advocacy on behalf of kids' self-esteem, even leading him to testify before Congress years ago.