Officials want to talk to people who knew Roberta Mumma in Denver, Boulder

Texas law enforcement is asking for Colorado’s help solving the 1984 cold case murder of a 25-year-old woman.

The Jack County Sheriff’s Office and Texas Rangers discovered the remains of Roberta “Berta” Mumma in a remote area in Jack County more than 40 years ago. Mumma’s identity was unknown until 2024 when she was identified using DNA analysis and advanced forensic analysis, according to a Colorado Bureau of Investigation news release issued Friday.

Mumma was 25 at the time of her death. The Jack County Sheriff’s Office and Texas Rangers are investigating the cold case. Mumma may have been in Colorado — particularly, Denver or Boulder, the news release said. The Texas Rangers want to talk with anyone who knew Mumma when she was in Colorado, Tennessee or Texas.

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