Miller Gardner may have died of carbon monoxide poisoning, Costa Rica official says

Miller Gardner may have died from carbon monoxide poisoning after tests revealed elevated levels of the potentially lethal gas in the hotel room he had been staying in, according to Costa Rica's Judicial Investigation Agency, or OIJ.

Gardner, the youngest son of former New York Yankees outfielder Brett Gardner, died March 21 at the age of 14 while on vacation with his family. According to a statement from the Gardners, he died in his sleep after he and several other family members fell ill.

OIJ Director Rándall Zúñiga said Monday that a team testing the family's hotel room found high levels of carbon monoxide, and that the hotel room the family was staying in is situated next to a room with machines that could have caused the contamination. The test results led the OIJ's investigation towards whether Gardner died from inhaling the gas, Zúñiga said.