Miller Gardner -- the 14-year-old son of former New York Yankees outfielder Brett Gardner -- died from carbon monoxide poisoning, Costa Rican authorities have said.

Late last month, former New York Yankees star Brett Gardner and his wife, Jessica, announced the death of their 14-year-old son, Miller. "With heavy hearts we are saddened to announce the passing of our youngest son,

Miller Gardner, the 14-year-old son of former New York Yankees player Brett Gardner, may have died as a result of carbon monoxide poisoning, authorities in Costa Rica announced on Monday.

The family of former New York Yankees hero Brett Gardner released an obituary for their son, who died on a vacation to Costa Rica.

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.

Brett Gardner's son Miller's cause of death has been confirmed by local authorities nearly two weeks after his death. Miller was in Costa Rica with family when he died on the morning of Friday, March 21.

Miller Gardner, the 14-year-old son of former Yankees outfielder Brett Gardner, dies last week while on vacation with his family in Costa Rica due to carbon monoxide poisoning, authorities confirmed Wednesday.