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

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Preliminary reports reveal South Carolina Sen. Lindsey Graham died at 71 from an aortic dissection due to arteriosclerotic cardiovascular disease. Dr. Marc Siegel, Fox News senior medical analyst, breaks down the fatal condition and the emergency response timeline at Graham's home. Additionally, Dr. Siegel warns about a spike in Cyclosporiasis cases across 31 states, offering crucial safety tips for prevention. A 22-year-old passenger who died after a medical emergency aboard a Southwest Airlines flight bound for Los Angeles has been identified as officials investigate what may have led to his sudden death. Rain McMillan Walmsey died Aug. 7 after becoming unresponsive aboard Southwest Flight 958 from Dallas to Los Angeles, prompting desperate attempts to save him before the plane landed at Los Angeles International Airport. Newly released records fro