News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Politics
Partly Cloudy
69°
Local
Crime
Weather
Politics
Miller Gardner blue

Carbon monoxide poisoning was cause of death for Brett Gardner's teenage son

Miller Gardner died on March 21 while staying with his family at a hotel on the Manuel Antonio beach in Costa Rica’s Central Pacific.

Associated Press

Apr 3, 2025, 10:40 AM

Updated

Share:

More Stories

Carbon monoxide poisoning was the cause of death of the teenage son of former New York Yankees outfielder Brett Gardner, authorities in Costa Rica confirmed Wednesday night.

Randall Zúñiga, director of the Judicial Investigation Agency, said they tested the 14-year-old Miller Gardner for carboxyhemoglobin, a compound generated when carbon monoxide binds to hemoglobin in the blood.

When carboxyhemoglobin saturation exceeds 50%, it is considered lethal. In Gardner’s case, the test showed a saturation of 64%.

“It’s important to note that adjacent to this room is a dedicated machine room, where it’s believed there may be some type of contamination toward these rooms,” Zúñiga said.

The head of the Costa Rican judicial police added that, during the autopsy, a “layer” was detected on the young man’s organs, which forms when there is a high presence of the poisonous gas.

Miller Gardner died on March 21 while staying with his family at a hotel on the Manuel Antonio beach in Costa Rica’s Central Pacific.

Asphyxiation was initially thought to have caused his death. After an autopsy was performed by the Forensic Pathology Section, that theory was ruled out.

Another line of investigation was into whether the family had suffered food poisoning. Family members had reported feeling ill after dining at a nearby restaurant on the night of March 20 and received treatment from the hotel doctor.

Brett Gardner, 41, was drafted by the Yankees in 2005 and spent his entire major league career with the organization. The speedy outfielder batted .256 with 139 homers, 578 RBIs, 274 steals and 73 triples in 14 seasons from 2008-2021.

Top Stories

01:25
WEEKEND NOR'EASTER FUTURECAST

A windy stretch ahead before potential weekend nor’easter impacts Connecticut

03:03
4289c2c2-46d3-4106-b0c4-cc236b2e4067

Can Saturday's full moon make this weekend's potential nor'easter more dangerous

01:37
Screenshot 2026-09-23 052203

Teen motorcyclist killed in fiery Stamford crash near middle school, passenger seriously injured

Booking Photo.jpg 2

Bridgeport man charged with attempted murder after woman seriously injured in Trumbull domestic assault

00:54
Screenshot 2026-09-23 120546

Power restored at flood-damaged Bridgeport high-rise, but residents still waiting for hot water

00:24
Screenshot 2026-09-23 054628

Bicyclist suffers critical head injuries after crash with SUV in Torrington

01:22
RTREGCTStamfordStandoffJDeVellis9pm

'Loud bangs.' Police search for wanted man shuts down Stamford street for hours Tuesday

01:10
923hauntedtristate_2026-09-23-06-09-47

See haunted objects at Zaffis Museum of the Paranormal

00:55
9232026WCwater_2026-09-23-05-20-06

Long Island Sound water quality earns high marks, but many bays and harbors continue to struggle

02:02
RTREGCTLockwoodTrialDay4MAlter9pm

Former Stamford officer will testify in trial for 2023 on-duty crash that killed pastor

GENERIC POLICE LIGHTS

Controversial influencer ‘Clavicular’ accused of raping 17-year-old girl

00:23
crime box copy (1)

Bridgeport police seek 2 in connection to slashing of Amazon delivery driver during attempted robbery

01:42
RTCTPDChiefMisconductAllegationsJCraven4pm

Police union calls for Justice Dept. probe into city's chief. He calls it sour grapes

AP26265514672157

Coroner: Rockland County's Hayden Panettiere died from accidental overdose involving fentanyl

00:36
Screenshot 2026-09-22 054128

Lawmaker stranded by international flight delays calls for greater airline transparency

02:16
marissa lockwood 2

Trooper testifies that ex-Stamford officer got up to 65 mph before deadly crash on pastor's street

00:23
Screenshot 2026-09-22 053853

Affordable housing complex in Bridgeport set for $19.5M overhaul with major upgrades planned

01:54
9222026WCkat8_2026-09-22-08-11-57

MTA begins issuing fines through work zone speed cameras on bridges and tunnels

01:55
RTREGCTFairfieldLGBTBarClosesSG001

Exclusive: Owner of Trevi Lounge in Fairfield explains decision to close one of area's only gay bars

00:24
Screenshot 2026-09-22 094721

Jaxson Dart's knee injury is still being evaluated, Giants coach John Harbaugh says

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices