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’ Cause of Death Being Investigated Richard Simmons Said 'I Know People Miss Me' in Emotional Final Interview 2 Days Before His Death (Exclusive) From the Spotlight to His Quiet ...

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 ...

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 ...