Chicago, Burlington and Quincy Railroad Police Department, Railroad Police
End of Watch Wednesday, September 12, 1917
Add to My HeroesOran M. Diemer
Special Agent Oran Diemer was shot and killed in Hannibal, Missouri, while he and another railroad detective arrested a man for trespassing on a freight train.
They encountered the man in one of the train's boxcars while it was in transit. He requested to be allowed to purchase a ticket when they arrived at the next city and the detectives stated they would allow him to per the company's policy. When the train slowed as it entered Hannibal the man suddenly produced a handgun and shot Special Agent Diemer in the forehead, killing him. He then shot the second detective three times before jumping from the train near the Main Street crossing. Despite his wounds, the wounded detective jumped from the train and returned fire at the subject as he fled.
Within a few hours the suspect, 35, was apprehended by the city marshal in Monroe City and positively identified by the wounded detective. On January 28, 1918, he was convicted of first degree murder and sentenced to life. He was paroled on January 23, 1953.
Bio
- Age 27
- Tour Not available
- Badge Not available
Incident Details
- Cause Gunfire
- Location Missouri
- Weapon Handgun
- Offender Paroled in 1953
Most Recent Reflection
View all 6 ReflectionsNo passage of time will ever erase your service and sacrifice. Rest in peace always.
Detective Cpl/3 Steven Rizzo
Delaware State Police (Retired)
September 12, 2020
Recent LODD Deaths

Deputy Sheriff Caleb Conley
Scott County Sheriff's Office, KY
EOW: May 22, 2023

Sergeant Michael Kunovich
St. Johns County Sheriff's Office, FL
EOW: May 19, 2023

Deputy Sheriff Brett Harris
Riverside County Sheriff's Department, CA
EOW: May 13, 2023

Sergeant Joshua Lee Clouse
Cameron Police Department, TX
EOW: May 11, 2023

Port Police Officer Kimberly Sickafoose
Alabama Port Authority Police, AL
EOW: May 11, 2023

Police Officer Aréanah M. Preston
Chicago Police Department, IL
EOW: May 6, 2023

Detective Jacob Beu
Rutherford County Sheriff's Office, TN
EOW: May 7, 2023

Police Officer Robert Shisler
Deptford Township Police Department, NJ
EOW: May 7, 2023

Deputy Sheriff Kaitie Leising
St. Croix County Sheriff's Office, WI
EOW: May 6, 2023