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Friday, September 19, 2025

SEEK CLUES IN TEXAS COLD CASE MURDER OF WOMAN WHO MAY HAVE BEEN IN DENVER OR BOULDER


High School photo


Computerized age progression image 

Authorities identified the skeletal remains of a woman murdered four decades ago as R
oberta “Berta” Mumma, 25, who may have been in Denver or Boulder before her slaying in Texas, the Colorado Bureau of Identification said Friday.

Mumma - whose remains were found by deer hunters near Wizard Wells, Texas, in December 1984 - was positively identified last year using DNA analysis and advanced forensic techniques. 

Wizard Wells is located in Jacks County about 90 miles northwest of Dallas.

Mumma, a graduate of Ephrata High School in Ephrata, Pennsylvania, was found wrapped in a shower curtain or mattress plastic and that she may have been dead for a year or more from a blow to her skull, according to news reports.

She may have also traveled to Tennessee. 

“The smallest detail could be crucial in solving this case," officials said.

If you have information, call Texas Ranger Michael Schraub at 940-549-0549 or the Jacks County Sheriff's Office at (940) 567-2161.

Around the time of her high school graduation, about 1976, Mumma, a high school honor roll student, was residing with a sister, Thistle Rupp, who was acting at her guardian, a local newspaper said.

She had plans to study physical therapy at the University of Pittsburgh and then go to graduate school and won 
scholarships from the Woman's Club of Ephrata, the March of Dimes Health Career Awards and the Ephrata Area Education Association.



Wizard Wells, Texas 

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