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ARVADA, Colo. (KDVR) — Scott Henry Smith, 71, went missing from the 12700 block of W. 56th Place at 2:30 p.m., Jefferson County Sheriff’s Office reports.

He is 6 feet tall and weighs 300 pounds. He has gray hair and hazel eyes, wearing a long sleeve blue sweater.

Jeffco Sheriff says he is endangered and is known to ride RTD. If seen, please call 911.