Costa Rica authorities confirmed that carbon monoxide poisoning was the cause of death of Miller Gardner, the 14-year-old son of former New York Yankees outfielder Brett Gardner.

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

The 14-year-old son of former New York Yankees outfielder Brett Gardner died from carbon monoxide poisoning while visiting Costa Rica, local authorities have confirmed. From CBS N

A forensic pathologist explained to Us Weekly why the late Miller Gardner may have experienced a stronger reaction to carbon monoxide than his family

A high level of carbon monoxide was detected in 14-year-old Miller Gardner's hotel room, Costa Rican Police revealed.

A blood test for carbon monoxide showed a saturation level of 64% in Gardner’s body, Costa Rican officials said. Concentrations above 50% are considered lethal.

Miller Gardner, the 14-year-old son of former New York Yankees player Aaron Gardner, died of carbon monoxide poisoning, Costa Rican authorities confirmed to the Associated Press on April 2.

Officials in Costa Rica have confirmed the official cause of death of Miller Gardner, the 14-year-old son of former New York Yankees player Brett Gardner who died under mysterious circumstances on March 21 while on a family vacation.