Crime Solvers Central
CSC
251 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
In February of 1979, the life of 24-year-old Katherine Sue Barnum took a mysterious and unsettling turn, leaving her family with decades of unanswered questions. She was last seen in Aurora, Colorado, where she resided in an apartment located near the 900 block of South Salem Street. At the time of her disappearance, a man named Randal Francis Arnold had been living with her for approximately two months. After she vanished, Arnold suggested that Katherine had left for California with an unknown ...Read More
Last Seen: Feb 19, 1979

Victim Details

Jun 18, 2012

Jul 19, 2023

Katherine

Barnum

69

24

64 inches

210 lbs

White / Caucasian

Female

Feb 19, 1979

Aurora

Colorado

Adams County

11875

Aurora Police Department

Aurora

Colorado

Arapahoe County

80012

Stephen Conner

Detective

15001 East Alameda Parkway, Colorado

3036273100

Local

Law Enforcement

Aurora Police Department

Red/Auburn

Hazel

Hazel

05/29/2026


Area Last Seen: