Richard Harrison, who was referred to "The Old Man" on the television series "Pawn Stars," has died. Harrison's son and co-star for the History channel series, Rick Harrison, made the announcement to more than 245,000 Instagram followers on Monday, attributing his father's death to Parkinson's.

A rep for the Harrisons confirmed news of the patriarch's passing to USA TODAY, and issued the statement Rick shared to Instagram.

In a statement obtained by USA TODAY, the History channel also mourned the TV star.