Authorities in Costa Rica are investigating the death of 14-year-old Miller Gardner, son of former New York Yankees outfielder Brett Gardner, with carbon monoxide poisoning suspected due to elevated levels found in the family's hotel room. The room was located next to a specialized machine room, which may have been the source of the gas, and the investigation by the Costa Rican Judicial Investigation Agency is ongoing to confirm the exact circumstances. Miller Gardner is remembered as a vibrant and kindhearted individual, and his passing has deeply affected his family, friends, and community, highlighting the potential dangers of carbon monoxide exposure in hotels.