It was the independent franchise owner.
http://www.nbcnews.com/business/pizza-hut-manager-fired-after-refusing-open-thanksgiving-2D11665028
http://www.nbcnews.com/business/pizza-hut-manager-fired-after-refusing-open-thanksgiving-2D11665028
As follow up to the situation in Elkhart, IN, we feel strongly that the situation involving our independent franchisee and the local store manager could and should have been avoided. We fully respect an employee's right to not work on a holiday, which is why the vast majority of Pizza Huts in America are closed on Thanksgiving. As a result, we strongly recommended that the local franchisee reinstate the store manager and they have agreed. We look forward to them welcoming Tony back to the team.