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A Costa Rican physician has revealed new insights into the tragic passing of Miller Gardner, the 14-year-old son of former Yankees player Brett Gardner.
In discussions with People magazine, Dr. Kevin Gannon of Manuel Antonio Urgent Care confirmed that when first responders reached the scene at Costa Rica’s Arenas Del Mar Beachfront & Rainforest Resort, Miller had no vital signs. Despite thirty minutes of advanced life support CPR on March 21, their efforts proved unsuccessful.
“There was not much we could do for him,” Gannon stated. “We responded to a patient without vital signs, and he had no vital signs when we arrived. And we do not have records of him at all.”
A medical unit worked frantically on Miller Gardner at the hotel, according to reports. https://t.co/fNZSopsKX3
— HuffPost (@HuffPost) March 28, 2025
Speaking to Us Weekly, Gannon detailed that his response team, consisting of a licensed physician, nurse, and ambulance driver, acted swiftly upon receiving the emergency call. After thirty minutes of attempted resuscitation, they officially pronounced Miller’s death and notified the appropriate authorities.
The cause of death remains uncertain, though Gannon acknowledged that family members had been experiencing gastrointestinal issues. In his conversation with The Post, he described the situation as “very confusing,” noting their inability to determine a definitive cause.
According to Juan Pablo Alvarado Garcia, representing Costa Rica’s Judicial Investigation Agency, autopsy results could take up to 90 days due to increased homicide cases stemming from territorial drug gang conflicts.
Brett Gardner and his wife Jessica Clendenin announced their son’s passing through the Yankees’ X account on March 23, stating that their “youngest child passed away peacefully in his sleep.” The couple, parents to 16-year-old Hunter, expressed their frustration at having “so many questions and so few answers.”
Yankees Alum Brett Gardner's Son Miller Has Preliminary Cause of Death Revealed
This is a heartbreaking time for the Gardner family. Sending all their love in the face of such immense loss. 💐 🙏 https://t.co/TVdRZdwskQ— Ricky Blare (@RBlare92801) March 27, 2025
Garcia indicated that the family hasn’t yet retrieved Miller’s body, pending necessary American embassy procedures. Local authorities reported that Miller and his family experienced food poisoning the night before his death. While asphyxiation has been ruled out, despite initial reports suggesting otherwise, there’s speculation about a possible allergic reaction to food poisoning medication.
However, Gannon expressed skepticism about this theory, noting the rarity of delayed food reactions or adverse responses to standard gastrointestinal medications. Garcia confirmed that neither recreational drugs nor alcohol played a role in Miller’s death, though he mentioned that responding agents found vomit in the teenager’s mouth and nasal passages.
Miller’s girlfriend, Zoe Williams, shared her grief on TikTok, writing, “I just wish I could’ve said goodbye or talked to you or even given you a hug for one last time. I love you more than anything and I’ll never be able to get over your loss.”