Miller Gardner, the youngest son of former New York Yankees outfielder Brett Gardner, died at the age of 14 while on vacation with his family.

Former Yankees player Brett and his wife, Jessica, announced last month that their teenage son, Miller, died on March 21. Here’s what we know about the cause of his death.

The former New York Yankees outfielder's 14-year-old son died on March 21 during a family vacation in Costa Rica.

The New York Yankees star’s 14-year-old son was found dead in his hotel room during the family’s vacation in Costa Rica.

Miller Gardner ‘s cause of death has been confirmed by Costa Rica authorities. The 14-year-old son of former New York Yankees star Brett Gardner died of exposure to poisonous gases including carbon monoxide poisoning, Us Weekly confirmed on Wednesday, April 2.

The investigation into the death of New York Yankees baseball star Brett Gardner's 14-year old son is continuing.

Miller Gardner, the 14-year-old son of former New York Yankees star Brett Gardner, died March 21 due to carbon monoxide poisoning while on a family vacation in Costa Rica, authorities confirmed Wednesday.

Miller Gardner, the 14-year-old son of former New York Yankees outfielder Brett Gardner, died of carbon monoxide poisoning. Costa Rica's Judicial Investigation Agency confirmed Miller Gardner's cause of death on Wednesday night.

Brett Gardner's son, Miller Gardner, recently passed away on March 21, and we now know the unfortunate reason why.