T. Denny Sanford, First Premier Bank owner and South Dakota's richest has died at 90. Gov. Larry Rhoden praised his legacy. A cause of death was not announced.

T. Denny Sanford, First Premier Bank owner and South Dakota's richest has died at 90. Gov. Larry Rhoden praised his legacy. A cause of death was not announced.

The credit card magnate turned mega-donor built one of the country's largest rural health systems.