Brett Gardner's family was on vacation in Costa Rica when the former Yankee's son Miller, 14, fell ill and died unexpectedly on Sunday, March 23, PEOPLE can confirm.

Miller Gardner -- the 14-year-old son of former New York Yankees outfielder Brett Gardner -- died from carbon monoxide ...

On Friday, Mary Munive Angermuller, Costa Rica’s Health Minister, announced that they will be investigating exactly what ...

After Brett Gardner’s son Miller Gardner was found dead due to carbon monoxide exposure during a vacation in Costa Rica, a CO ...

A spokesperson for the hotel denied initial reports by police that there were high levels of carbon monoxide in Miller's room ...

(AP Photo/Adam Hunger, File) New York Yankees’ Brett Gardner walks off the field after being defeated by the Tampa Bay Rays ...

Miller Gardner, the teenage son of former New York Yankees outfielder Brett Gardner, died of carbon monoxide poisoning, ...

Una intoxicación por monóxido de carbono fue el motivo del fallecimiento del hijo adolescente del expelotero de las Grandes ...

The 14-year-old son of former New York Yankees outfielder Brett Gardner died from carbon monoxide poisoning while visiting ...

Authorities in Costa Rica have revealed the cause of death for the 14-year-old son of former New York Yankees star Brett ...

Miller Gardner, the 14-year-old son of former New York Yankees outfielder Brett Gardner, is believed to have died as a result ...

Carbon monoxide poisoning was the cause of death of the teenage son of former New York Yankees outfielder Brett Gardner, ...