• Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2026 ABC News
  • News

Brett Gardner's son latest: Hotel disputes police's report of high carbon monoxide level in room

1:25
Investigators uncover new details in Miller Gardner's death
@Yankees/X
ByEmily Shapiro
April 01, 2025, 8:11 PM

High levels of carbon monoxide were detected in 14-year-old Miller Gardner's hotel room, Costa Rican police revealed more than one week after the son of former New York Yankees outfielder Brett Gardner mysteriously died on a family vacation.

The carbon monoxide was discovered while conducting tests last week in Miller Gardner's room at the exclusive Arenas Del Mar resort in Manuel Antonio, Costa Rican police said Monday.

But a spokesperson for the resort told ABC News on Tuesday that "the high levels of carbon monoxide were in a mechanical room that guests do not occupy."

"The levels in the hotel room were non-existent and non-lethal," the hotel spokesperson said.

Miller Gardner's cause of death is not known and investigators are still waiting for final toxicology results.

Brett Gardner (far right) poses in this undated photo with his wife, Jessica, and sons, Miller (next to his father) and Hunter (far left).
@Yankees/X

Related Articles

MORE: Son of former Yankees player Brett Gardner honored at opening day after his mysterious death in Costa Rica

"We trust that the forensic process will objectively, clearly, and conclusively clarify the causes of this unfortunate incident," the hotel said in a statement on Monday. "Out of respect for the ongoing judicial process and the family's privacy, we will refrain from commenting on any unconfirmed hypotheses or possible causes."

Miller Gardner died in his sleep on the morning of March 21, according to the family.

This undated photo posted by the New York Yankees on the social media site X shows 14-year-old Miller Gardner, the son of former Yankees players Brett Gardner, who died, Mar. 21, 2025, from a sudden illness while on a family vacation.
@Yankees/X

Related Articles

MORE: Asphyxiation ruled out as cause of death for former Yankees player Brett Gardner's son: Costa Rican National Police

The night before, the Gardners went out to dinner at a restaurant close to the resort, and they felt sick when they returned to the hotel, according to a Costa Rican source close to the investigation.

A hotel spokesperson said the staff "dispatched a medical team immediately, including a licensed doctor, which arrived to handle the emergency situation."

"Miller was a beloved son and brother and we cannot yet comprehend our life without his infectious smile," the Gardners said. "We are so thankful to all who have reached out to offer support and encouragement during this difficult time and we are confident our faith, family, and friends will help us navigate this unimaginable loss."

Up Next in News—

Artemis II astronauts on their out-of-this-world mission: 'Adventure of a lifetime'

April 30, 2026

'Rogue' AI agent went haywire at tech company. The CEO is still 'bullish' on the technology

April 29, 2026

King Charles III gives toast at White House state dinner: Read his full speech

April 29, 2026

This San Francisco shop is run completely by an AI agent

April 23, 2026

Shop GMA Favorites

ABC will receive a commission for purchases made through these links.

Sponsored Content by Taboola

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • Shop FAQs
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2026 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2026 ABC News