Charles County Sheriff's Office, Maryland
End of Watch Tuesday, January 11, 1977
Add to My HeroesDennis Leo Riley
Deputy Sheriff Dennis Riley was killed in an automobile crash at the intersection of Route 228 and U.S. Route 301 in Waldorf, Maryland.
As he waited for a traffic light to change, a tractor-trailer fuel tanker skidded to a stop and overturned on his patrol car, killing him instantly.
Deputy Riley was a United States Marine Corps Vietnam War veteran and served with the Charles County Sheriff's Office for five years. He was survived by his wife and four children.
Bio
- Age 28
- Tour 5 years
- Badge 49
- Military Veteran
Incident Details
- Cause Automobile crash
Most Recent Reflection
View all 15 ReflectionsDeputy Sheriff Riley,
On today, the 48th anniversary of your death I would just like to say thank you for your service and sacrifice-not just as a Law Enforcement Officer but for our Country as well when you served with the USMC during the Vietnam War. And to your Family and loved ones, I wish to extend my deepest sympathy.
Semper Fi Devil Dog!
BPA Mike Casey
United States Border Patrol(Retired)
January 11, 2025
Recent LODD Deaths
Detective Timothy Jones
Park Forest Police Department, IL
EOW: December 3, 2025
Specialist Sarah Beckstrom
United States Department of Defense - Army National Guard - West Virginia Army National Guard, WV
EOW: November 27, 2025
Reserve Deputy Sheriff John C. Stahl, III
Jefferson County Sheriff's Office, IN
EOW: June 8, 2025
Sergeant Terri Jean Sweeting-Mashkow
Indian River County Sheriff's Office, FL
EOW: November 21, 2025
Police Officer Alec Sanders
Alhambra Police Department, CA
EOW: November 20, 2025
Corrections Officer Jeremy Lewis Hall
Virginia Department of Corrections, VA
EOW: November 17, 2025
Police Officer Marc Brock
Vivian Police Department, LA
EOW: November 14, 2025
Corporal Blake Adair Reynolds
Delaware County Sheriff's Office, IN
EOW: November 12, 2025
Police Officer Roger Smith
WakeMed Campus Police & Public Safety Department, NC
EOW: November 8, 2025

