Brett Gardner’s Son’s Death Probed as Possible Homicide in Costa Rica

The tragic death of Miller Gardner, the 14-year-old son of former New York Yankees star Brett Gardner, continues to haunt both the family and authorities. Initially attributed to carbon monoxide poisoning in April, the case has taken a darker turn as Costa Rican prosecutors now investigate the possibility of homicide.

Miller passed away on March 21, 2025, during a family vacation at the Arenas Del Mar hotel in Manuel Antonio. The Gardner family announced the heartbreaking loss two days later, noting that several family members fell ill during the trip. Tests revealed Miller’s blood had a lethal 64% saturation of carboxyhemoglobin, a marker of carbon monoxide exposure.

Despite the initial ruling, the investigation remains open. A spokesperson for the Costa Rican prosecutor’s office stated, “We are determining whether this could be a homicide, and no conclusions can be drawn yet.” This uncertainty compounds the family’s grief, as they described Miller as a vibrant teen who loved sports, hunting, and living life fully.

Brett Gardner, a beloved Yankee who played his entire 14-season career in the Bronx, last took the field in 2021. The family’s statement reflected their anguish: “We have so many questions and so few answers.” As the investigation unfolds, the sports world and beyond await clarity in this heartbreaking saga.