Richard "Old Man" Harrison of "Pawn Stars" has died at age 77. He was remembered Monday by son Rick Harrison and his family the rest of his family.
ref:http://www.latimes.com/entertainment/la-et-entertainment-news-updates-2018-richard-the-old-man-harrison-of-pawn-1529959254-htmlstory.html
That guy was such a character. He will be missed and can't be replaced.