Richard Simmons was a television personality and fitness guru for several decades, teaching Americans about a healthy lifestyle. His sudden death is now the subject of an investigation.

It remains unclear if Richard Simmons' bathroom fall influenced his passing. But with the new investigation into the cause of his death, the mystery will soon be solved.

Richard Simmons ... receiving notices from Mr. Simmons’ representatives but continued to republish the defamatory sex change allegations without further investigation into Mr. Oliviera’s ...

Fitness guru Richard Simmons’ cause of death is being ‘deferred pending further testing and investigation,’ according to police. ET caught up with friends and family of the late fitness guru ...

Richard Simmons has ... finds anyone with any connection to Simmons. In the final episode don't be surprised if they look through Simmons trash. A deep investigation into Simmons' disappearance ...

Richard Simmons speaks to the audience before the start of a summer salad fashion show at Grand Central Terminal in New York on June 2, 2006. Simmons, a fitness guru who urged the overweight to ...