Costa Rican authorities announced on Monday that Miller Gardner, the 14-year-old son of Brett Gardner, a legendary Yankee player, may have passed away due to carbon monoxide poisoning.

Miller tragically died on March 21 during a family vacation in Costa Rica after experiencing an unexplained illness that also affected other members of the Gardner family.

Early reports suggested that Miller likely died by asphyxiation in his sleep due to food poisoning, before that theory was ruled out.

The investigation uncovered that the family’s hotel room had elevated levels of carbon monoxide, as disclosed by Randall Zúñiga, the general director of Costa Rica’s Judicial Investigative Agency during a statement made on Monday.

“It’s also important to note that next to [the family’s] room there is a specialized machine room, from which it is believed some form of contamination may have reached the guest rooms, potentially causing the incident,” Zúñiga said in Spanish at a virtual press conference.

The investigation is still ongoing and officials are still waiting for the final toxicology results, Zúñiga added.

“Nonetheless, the initial investigative findings indicate that the incident was due to this contamination, with levels as high as 600 parts per million detected — when the appropriate level in this case should be zero,” he said.

Just last month, three American tourists visiting Costa Rica were found dead following “fatal exposure to carbon monoxide poisoning” in their hotel room.

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