The baseball world was shaken by the tragic news that Brett Gardner’s 14-year-old son, Miller Gardner, passed away while on vacation with his family in Costa Rica on March 21, 2025. Initially, the Gardner family had shared that Miller had fallen ill, along with several other family members, but they had believed he peacefully passed away in his sleep. The news of his untimely death left friends, family, and fans heartbroken.

However, a new report has emerged, indicating that Miller’s cause of death may have been asphyxiation, potentially resulting from food intoxication. Local authorities in Costa Rica are still awaiting autopsy and toxicology results to fully confirm the exact cause of death. The investigation into his passing is ongoing, as experts work to determine the precise circumstances surrounding this devastating event.
Brett Gardner, who retired from Major League Baseball in 2021, had been spending more time with his family following his career. The loss of his son has undoubtedly been a deeply emotional and personal tragedy. The New York Yankees, the team where Brett spent his entire MLB career, expressed their condolences to the grieving family. The organization publicly acknowledged Miller’s vibrant personality and the impact he had on those around him, offering support during this extremely difficult time.

Miller Gardner’s passing has left an undeniable void in the hearts of those who knew him, and the entire baseball community mourns the loss of a young life gone too soon. As investigations continue, the Gardner family has requested privacy to grieve during this heartbreaking moment.