Isaac Hayes courtesy Isaac Hayes courtesy

The cause of Isaac Hayes' death on Sunday was a stroke associated with chronic hypertension, according to a statement released by Shelby County Sheriff's spokesman Steve Schular.

Hayes' wife found him Sunday lying unresponsive near a treadmill at his Tennessee home, and he was pronounced dead at a Memphis hospital. No autopsy is scheduled. Hayes was 65, and leaves behind him a legacy of rock, soul and even a South Park character. - Anna Dimond

More on Isaac Hayes:
" Isaac Hayes, Legendary Singer-Songwriter, Dies at 65
" Isaac Hayes: Appreciating "Black Moses"
" Bernie Mac, Isaac Hayes Worked on Final Project Together