United States Department of the Interior - United States Park Police, U.S. Government
End of Watch Thursday, August 11, 1988
Add to My HeroesRicardo Michael Preston
Sergeant Ricardo Preston suffered a fatal heart attack while participating in a SWAT team training exercise at Fort Meade, Maryland.
He was navigating an obstacle course when he suddenly collapsed.
Sergeant Preston had served with the United States Park Police for 14 years. He is survived by his wife, daughter, mother, stepfather, and five siblings.
Bio
- Age 37
- Tour 14 years
- Badge Not available
Incident Details
- Cause Heart attack
- Location Maryland
Most Recent Reflection
View all 10 ReflectionsRest In Peace
Nick mottola
None
August 11, 2020
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

