The death of Miller Gardner, the 14-year-old son of former New York Yankees outfielder Brett Gardner, at a beach resort in Costa Rica is believed to be related to carbon monoxide inhalation, the Judicial Investigation Agency (OIJ) of the Central American country said Monday.

SAN JOSE, Costa Rica (AP) — Carbon monoxide poisoning was the cause of death of the teenage son of former New York Yankees outfielder Brett Gardner, authorities in Costa Rica confirmed Wednesday night.

Carbon monoxide poisoning is reportedly what caused the death of Miller Gardner, the teenage son of retired New York Yankees outfielder Brett Gardner.

Former New York Yankees player Brett Gardner's son Miller's cause of death has been ruled out as asphyxiation, as the investigation is still ongoing into his death.

Officials in Costa Rica are now saying carbon monoxide poisoning may have caused the death of the teenage son of former MLB player Brett Gardner, backtracking on comments made a week earlier.

Randall Zúñiga, director of the Judicial Investigation Agency, said they tested the 14-year-old Miller Gardner for carboxyhemoglobin, a compound generated when carbon monoxide binds to hemoglobin

Alongside photos of Miller and the family, the couple revealed that their son died on Friday, Mar. 21 ... spent his entire 14-season MLB career with the Yankees. He was part of the team that won the World Series in 2009, just one year after making his ...

We have so many questions and so few answers at this point,” the family shared on social media Sunday as they mourned Miller Gardner.

A new toxicology report found the 14-year-old South Carolina boy's body had carboxyhemoglobin level of 64%, which is 14% above what is considered lethal.