United States Navy Security Forces, U.S. Government
End of Watch Sunday, April 28, 2024
Add to My HeroesLyndon Joel Cosgriff-Flax
Master-at-Arms 3rd Class LJ Cosgriff-Flax died when he fell overboard while conducting training at Naval Weapons Station Yorktown in Yorktown, Virginia.
He was conducting familiarization training on the York River with his harbor security boat team when he fell overboard at about 8:05 pm. MA3 Cosgriff-Flax suffered fatal injuries during the incident.
MA3 Cosgriff-Flax had been stationed at NWS Yorktown for two years. He is survived by his mother, father and stepmother, brother, sister, and grandparents.
Bio
- Age 22
- Tour 2 years
- Badge Not available
- Military Veteran
Incident Details
- Cause Boating accident
- Location Virginia
Most Recent Reflection
View all 83 ReflectionsLyndon,
On today, the 1st anniversary of your death I would just like to say thank you for your service and sacrifice for our Country. And to your Family and loved ones, I wish to extend my deepest sympathy.
Fair Winds And Following Seas
BPA Mike Casey
United States Border Patrol(Retired)
April 28, 2025
Recent LODD Deaths
Deputy Sheriff Tim Jordan
Bossier Parish Sheriff's Office, LA
EOW: January 21, 2026
Agent Aníbal Morales Aponte
Puerto Rico Police Department, PR
EOW: January 13, 2026
Zone Sergeant Steven W. Greene
New York State Police, NY
EOW: October 24, 2025
Sergeant Frederick W. Scheidt, Jr.
New York State Police, NY
EOW: August 13, 2025
Trooper Mark A. Ondus
New York State Police, NY
EOW: October 19, 2025
Police Officer Elijah Garretson
Copperas Cove Police Department, TX
EOW: January 11, 2026
Master Police Officer Donald Richard Gotthardt, Jr.
Fairfax County Police Department, VA
EOW: October 16, 2025
Police Officer Terry L. Bennett
Metropolitan Police Department, DC
EOW: January 7, 2026
Police Officer Stephen LaPorta
Uxbridge Police Department, MA
EOW: January 7, 2026



