MIAMI (CBSMiami) – Legendary former Dolphins running back Jim Kiick has died.

Kiick is best known for playing on the 1971 and 1972 Super Bowl teams.

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He was part of a three-headed backfield with pro football hall of fame fullback Larry Csonka and Mercury Morris.

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After his football career, Kiick became a private investigator with the Broward Public Defenders Office.

Kiick was diagnosed with dementia and early onset Alzheimer’s several years ago.

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He passed away Saturday night at the age of 73.