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 ...

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

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

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

The death of 14-year-old Miller Gardner has sparked hotel cancellations at the upscale Costa Rican resort where the family ...

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 ...

The teenage son of former New York Yankees star Brett Gardner appears to have died by asphyxiation after possibly having ...

The resort where the son of Yankees outfielder Brett Gardner was found dead has reportedly blocked off his room, but the beach getaway denies cops’ suggestion that carbon monoxide caused the teen’s ...

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 ...