22-year-old passenger dies after sudden medical emergency strikes aboard Southwest flight to LA

A 22-year-old rider who died aft a aesculapian exigency aboard a Southwest Airlines formation bound for Los Angeles has been identified arsenic officials analyse what whitethorn person led to his abrupt death.

Rain McMillan Walmsey died Aug. 7 aft becoming unresponsive aboard Southwest Flight 958 from Dallas to Los Angeles, prompting hopeless attempts to prevention him earlier the level landed astatine Los Angeles International Airport.

Newly released records from the Los Angeles County Medical Examiner uncover the probe into Walmsey’s decease remains open, and precisely what led to the young passenger’s decease remains unclear.

The aesculapian examiner identified Walmsey arsenic a 22-year-old antheral and listed his spot of decease arsenic "LAX Southwest plane."

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Portland, Oregon, USA - February 9, 2026: A Southwest Airlines 737 comes successful for landing astatine Portland International Airport. (iStock)

His origin of decease was listed arsenic "deferred," which the aesculapian examiner’s bureau says means the determination is pending further investigation. No mode of decease has been listed.

Walmsey became unresponsive aft experiencing a aesculapian exigency portion Flight 958 was en way to Los Angeles, instrumentality enforcement sources told NBC Los Angeles. CPR was administered to Walmsey aboard the aircraft, and paramedics responded erstwhile the formation arrived astatine LAX, according to the outlet. He could not beryllium revived and was pronounced dormant astatine the scene.

It remains unclear what benignant of aesculapian exigency Walmsey experienced.

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The device’s lithium artillery was larger than the permitted limit, causing the delay. (iStock)

Southwest Airlines confirmed to Fox News Digital that a "medical incidental involving a customer" occurred aboard Flight 958 from Dallas to Los Angeles connected Friday but did not supply further details, alternatively referring further questions to section authorities.

The incidental follows different caller cases involving passengers who suffered fatal aesculapian emergencies aboard commercialized flights.

A Southwest rider formation takes disconnected from San Diego International Airport successful San Diego, California, U.S., February 3, 2023. (REUTERS/Mike Blake)

In January 2025, 53-year-old Barbara Dipoli of Kansas died aboard an Air France formation from Paris to Boston, with authorities saying preliminary accusation pointed to a aesculapian occurrence during the flight.

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In June 2024, 8-year-old Sydney Weston became sick and unresponsive aboard a SkyWest formation earlier the level diverted to Peoria, Illinois.

That aforesaid month, a 41-year-old American rider died aft suffering a terrible aesculapian exigency aboard a Fiji Airways formation bound for San Francisco.