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.

Days after Brett Gardner and his wife Jessica Gardner announced the death of their 14-year-old son Miller Gardner, Costa Rican officials revealed that drugs and alcohol were not factors in his death.

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 day after Yankees alum Brett Gardner and his wife Jessica shared the death of their 14-year-old son Miller Gardner, Costa Rican officials announced the teen’s preliminary cause of death.

Miller Gardner's preliminary cause of death was asphyxiation, but authorities ruled that out.

Toxicology results confirmed former New York Yankees star Brett Gardner's son Miller died from carbon monoxide inhalation while on a family vacation in Costa Rica.

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.

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.

Miller Gardner—the late 14-year-old son of former New York Yankees outfielder Brett Gardner—died of carbon monoxide poisoning, Costa Rican authorities said Wednesday. The announcement comes 13 ...

Costa Rica's Judicial Investigation Agency confirmed Miller Gardner's cause of death on Wednesday night.

An investigation into the tragic death of former New York Yankees star Brett Gardner’s 14-year-old son has uncovered a possible cause of death.

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 ...