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S. Truett Cathy, the billionaire behind the popular fast-food chain Chick-Fil-A who became a prominent opponent of gay marriage, passed away Monday. Cathy, who was 93, proudly built the Southern-based chain in line with his Christian faith, closing his shops on Sundays and starting Monday mornings with optional devotionals in the corporate office. The Cathy family became nationally known for its anti-gay-marriage views when it was revealed it donated millions of dollars to groups opposing same-sex marriage. “Well, guilty as charged. We are very much supportive of the family, the biblical definition of the family unit,” said Cathy’s son Dan, when asked about the donations. His comments sparked a national controversy, as gay-rights activists staged kiss-ins at Chick Fil-A restaurants and former presidential candidate Rick Santorum famously threw his support behind the chain. Dan Cathy later apologized for his comments, and through the controversy, Chick-Fil-A’s sales thrived.