The tragic death of 14-year-old Miller Gardner, son of former New York Yankees player Brett Gardner, is under investigation by Costa Rican authorities after he passed away in his sleep during a family vacation. High levels of carbon monoxide were detected in the hotel room, leading investigators to consider the gas as a potential factor in his death. The Gardner family, who reported falling ill prior to the incident, awaits further details as the investigation into the exact cause of death continues.