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

The death of former New York Yankees outfielder Brett Gardner's son is now being investigated as a possible carbon-monoxide poisoning, investigators said Monday. Gardner's 14-year-old son, Miller, died in March during a family trip to Costa Rica.

The death of former New York Yankees star Brett Gardner’s 14-year-old son, Miller, left as many confounding questions as it provided answers.

Miller Gardner, the youngest son of former New York Yankees outfielder Brett Gardner, died at the age of 14 while on vacation with his family.

Local authorities previously speculated the teen’s March 21 death could have been caused by an allergic reaction or asphyxiation.

Less than a week after Yankees alum Brett Gardner’s son Miller Gardner, 14, died during a vacation in Costa Rica, his body was released to his family. The teen’s autopsy results are still pending.

Former New York Yankees outfielder Brett Gardner and wife Jessica paid tribute to their son Miller in a touching obituary, saying that his smile “brought joy to all,” after the

A preliminary investigation into the death of Miller Gardner, the son of former Yankee Brett Gardner, indicates he may have died from possible food poisoning.

Miller Gardner, former New York Yankees outfielder Brett Gardner's youngest son, died after getting sick on a family vacation, his parents say.