Earl K. Leonard
Agency patch
Patrolman

Earl K. Leonard

Chicago Police Department — Chicago, IL
Felonious
End of Watch June 9, 1929
Age 38
Badge 4558
The Vigil Panel 57 ›
Gender Male

Incident

Patrolman Earl K. Leonard was shot and killed during a traffic stop. He had stopped a traffic violator and was in the process of an arrest when a friend of the offender approached and shot him at the intersection of Lotus Avenue and Madison Street. The 21-year-old suspect was arrested, convicted of first-degree murder, and sentenced to life in prison. On September 15th, 1939, during an escape attempt he and two other lifers slipped drugs into the coffee of 11 guards leaving two in critical condition. On September 29th, 1952, he was released from prison after it was determined the trial judge gave an instruction to the jury that was ruled unconstitutional in 1935.

Survivors

Patrolman Leonard was survived by his wife and four children.

In Our Keeping

Permanent identifier
BO-US-IL-00B98859
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

I never knew you. I am standing here anyway.
Patrolman Leonard served with the Chicago Police Department.
Thank you for your service to the Chicago community. Gone but never to be forgotten.
Rest easy, Patrolman Leonard.

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

Agency

Type Police Department
Location Chicago, Cook County, IL
Platform Identity cpd.cook.il.us.gov.nw

Service Record

End of Watch June 9, 1929
Age 38
Badge Number 4558
Gender Male

Incident Details

Cause Felonious
Weapon Gun

Patrolman Earl K. Leonard 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 Police Department, 396 of 571 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 69.4% of this agency's fallen.

Chicago Police Department
396
of 571 officers
69.4% 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. Earl K. Leonard's cause is highlighted.

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

How Earl K. Leonard Compares

Age at Death
38
This officer
Avg for Felonious: 39.0 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Earl K. Leonard is highlighted in Jun.

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. Earl K. Leonard 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