Dennis E. Riley
Agency patch
Detective

Dennis E. Riley

Felonious
End of Watch December 21, 1898
Age 32
Tour of Duty 5 yrs
The Vigil Panel 15 ›
Gender Male

Incident

Detective Dennis Riley was shot and killed after intervening in a barroom dispute across from his agency's headquarters in Chicago, Illinois. After breaking up the dispute he was followed out of the saloon and confronted at gunpoint at the intersection of Kinzie Street and Wells Street. Detective Riley did not have a chance to draw his own weapon and was shot twice. The suspect stayed on the scene after the shooting claiming he shot Detective Riley in self-defense. The suspect was arrested and charged with murder. Detective Riley had served with the Chicago and Northwestern Railroad Police Department for five years.

Survivors

He was survived by his wife.

In Our Keeping

Permanent identifier
BO-US-RR-70C41F25
Stewardship
Maintained by NeuraWeb Global Inc.
Added to badge.nw
August 2, 2026
Last updated
August 2, 2026

Honored here by 1 tribute.

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Tributes

128 years is a long time for a name to go unread. Not today.
Detective Riley gave the Chicago and Northwestern Railroad Police Department 5 years.
Thank you for your service to the Chicago community. Gone but never to be forgotten.

— S. Vincent Anthony, U.S. Army 1985-1993

Agency

Type Police Department
Location Chicago, IL
Platform Identity cnrpd.rr.us.gov.nw

Service Record

End of Watch December 21, 1898
Tour of Duty 5 yrs
Age 32
Gender Male

Incident Details

Cause Felonious
Weapon Gun

Detective Dennis E. Riley is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,772 officers honored here.

In IL, 842 of 1,318 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 63.9% of this state's fallen. That is 63.9 percentage points above the national rate of 0%.

At Chicago and Northwestern Railroad Police Department, 14 of 18 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 77.8% of this agency's fallen.

Chicago and Northwestern Railroad Police Department
14
of 18 officers
77.8% Felonious
IL — Statewide
842
of 1,318 officers
63.9% Felonious
Nationwide
1
of 97,772 officers
0% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. Dennis E. Riley's cause is highlighted.

Felonious
1 (0%)
Accident
1 (0%)
Illness
1 (0%)
Cardiac
1 (0%)
Undetermined
1 (0%)
Suicide
1 (0%)

How Dennis E. Riley Compares

Age at Death
32
This officer
Avg for Felonious: 39.0 years
Years of Service
5
This officer
Avg for Felonious: 8.4 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Dennis E. Riley is highlighted in Dec.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,516
May
1,504
Jun
1,442
Jul
1,587
Aug
1,517
Sep
1,491
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths. Dennis E. Riley was killed by gun.

Handgun
3,684
Gun
3,592
Gun; Unknown type
1,492
Shotgun
1,109
Rifle
935
Officer's handgun
909

Incident Location