News12 New York
Where to Watch
Download the App
Local News
Crime
Weather
beWell
The East End
Crime Files
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.

More Stories

Top Stories

02:23
RENewarksewageamandastory_2026-04-16-22-26-32

Raw sewage flooding on Newark street leaves residents frustrated, concerned for health

00:30
REmeijiawins416_2026-04-16-22-23-07

Democrat Analilia Mejia wins election to US House in NJ's 11th Congressional District

01:45
Screenshot 2026-04-16 143628

Heat will ease as air gradually cools through the weekend

01:53
RESayrevillechristine4162026_2026-04-16-22-24-39

'Confusing, Difficult' NJDOT plans to redevelop notorious Sayreville intersection

01:48
REChrispolicestandoff4162026_2026-04-16-17-45-31

Lyndhurst man takes own life to avoid arrest by Union County detectives

01:53
Media

OH, BUOY! Channel marker washes up on Seaside Heights beach

DevilsGMSunny

Devils name ex-Florida Panthers executive as new general manager

00:13
DeadWhaleUpdate5p_2026-04-16-17-14-35

Dead whale found in Newark Bay towed to Jones Beach for necropsy

4x5 Generic (1)

Hackensack man charged with sexual assault after Bergen County investigation

00:24
4x5 Generic

Notre Dame High School guidance counselor charged with child endangerment, sexual contact with student

02:20
Screenshot 2026-04-16 061350

Sticker shock for World Cup fans as Friday’s plan exposes $225 parking and sky-high transit costs

00:23
FATAL CAR ACCIDENT

Branchburg man killed in rollover crash on New Road in South Brunswick

00:23
Jamie Ding

Mercer County law student eyes 25th consecutive win on Jeopardy

02:03
Screenshot 2026-04-16 091611

Road Trip Close To Home: Hands‑on history fills historic Madison museum focused on early trades

00:26
wildwood boardwalk

Wildwood announces overnight boardwalk closures

00:39
Washington Twp. Police save woman

Dramatic video shows police reviving woman following crash in Gloucester County

00:20
data breach

Phillipsburg council approves ordinance banning data centers

00:30
RoxburyICEMotionAM_2026-04-16-09-23-54

Emergency request filed to block proposed ICE detention center in Roxbury

00:20
db76603c-7977-4f8f-894b-6c12b566a6b6

Englewood resident defrauded of $1 million in elaborate tech support scam

00:28
Weehaken mail

Weehawken police bust multi-state mail theft ring operating across NJ and PA

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