Rain McMillan Walmsey, a 22-year-old passenger aboard a Southwest Airlines flight bound for Los Angeles International Airport from Dallas, died after experiencing a medical emergency mid-flight on Friday morning, according to law enforcement sources cited by NBC Los Angeles.
Southwest Flight 958 Medical Emergency and Response
Southwest Flight 958 was in the air Friday morning when Walmsey went into medical distress and became unresponsive, according to law enforcement sources who spoke with NBC Los Angeles.
Emergency personnel were unable to revive him, and firefighters pronounced Walmsey dead at the scene, according to law enforcement sources cited by NBC Los Angeles.
Investigation into Cause of Death
The exact nature of the medical emergency remains unclear, and the Los Angeles County medical examiner’s office has deferred the official cause of death pending further investigation, according to MyNewsLA.com.

Southwest Airlines issued a statement acknowledging that a “medical incident involving a customer” occurred on Flight 958, though the carrier did not release additional details regarding the incident, as reported by NBC Los Angeles.
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