Great Falls Police Department, Montana
End of Watch Thursday, November 28, 1935
Add to My HeroesSegval "Sig" Semingsen
Lieutenant Sig Semingsen suffered a fatal heart attack while responding to a disturbance call.
He collapsed after running up two flights of stairs to the scene of the disturbance at or near 217 1st Ave South.
Lieutenant Semingsen had served with the Great Falls Police Department for 27 years. He was a widower and was survived by his three children.
Bio
- Age 59
- Tour 27 years
- Badge Not available
Incident Details
- Cause Heart attack
Most Recent Reflection
View all 6 ReflectionsRest in peace Lt. Semingsen.
Rabbi Lewis S. Davis
May 19, 2020
Recent LODD Deaths
Corporal Timothy J. O'Connor, Jr.
Pennsylvania State Police, PA
EOW: March 8, 2026
Deputy Sheriff Kaleb Mitchell
Forsyth County Sheriff's Office, NC
EOW: March 7, 2026
Master Trooper Steven J. Perry
North Carolina Highway Patrol, NC
EOW: March 1, 2026
Conservation Enforcement Officer Senior Shawn Nixon
Alabama Department of Conservation and Natural Resources - Wildlife and Freshwater Fisheries, AL
EOW: November 23, 2025
Corporal David M. Hathcock
Montgomery Police Department, AL
EOW: February 22, 2026
Correctional Officer Dustin Pedigo
Tennessee Department of Correction, TN
EOW: February 25, 2026
Deputy Sheriff Michael Hislope
Christian County Sheriff's Office, MO
EOW: February 24, 2026
Deputy Sheriff Gabriel Ramirez
Christian County Sheriff's Office, MO
EOW: February 23, 2026
Deputy Sheriff Kenneth Lewis
Fort Bend County Sheriff's Office, TX
EOW: February 23, 2026

