10-year-old Cassidy was brought to tears when her dad, Staff Sergeant Clayton Walker, recorded a touching video message for her. She watched the video right before singing the national anthem with her elementary school at the Atlanta Braves game. What Cassidy didn't know was that her dad was actually back in American and planned a surprise homecoming for her on the field. After being gone for nearly a year, Cassidy, couldn't stop hugging her dad. #InsideEdition