Clint Walker ‘Cheyenne’ Star Dead at 90 5/22/2018 10:46 AM PDT EXCLUSIVE 11:15 AM PT — Clint’s daughter, Valerie, tells us Walker died from congestive heart failure.Clint Walker — best known for playing a TV cowboy on the hit western series “Cheyenne” — has died … TMZ has learned. Clint died suddenly Monday in the