A 4-year-old is now the youngest member of a Placentia, California firehouse because of the quick actions he took in order to save his little brother. Mason Ochoa was minted with the honor after he watched his little brother fall into the family’s pool. “He saw a fast learner, so he learned to swim. He knows how to swim. So that helped us a lot because he's only four years old,” their grandfather, Raul Velez, told KCBS. Inside Edition Digital’s Stephanie Officer explains.