Overview of A Promise to Helene
NBC News’ Dateline episode “A Promise to Helene” tells the story of Helene Pruszynski, a young journalism intern whose 1980 murder in Colorado became a decades-long cold case, and the relentless effort to solve it. The episode centers on the unwavering commitment of her high school friend Kimberly LaTourette, who promised Helene’s family she would never stop looking for justice, and on the breakthrough work of Detective Shannon Jensen, whose DNA genealogy investigation finally identified the killer after 40 years.
The Victim: Helene Pruszynski
Helene was remembered as:
- Bright, warm, and well-liked
- A talented singer and performer
- A journalism student with strong ambitions
- Deeply loved by her family and friends in Massachusetts
She had moved to Denver, Colorado in January 1980 for a journalism internship at a radio station while staying with relatives. Just two weeks into her internship, she disappeared after leaving work on a bus. Her body was found the next day in a snowy field.
The Crime and the Initial Investigation
Investigators determined that Helene:
- Was last seen getting off a bus after work
- Was found nine miles from the bus stop
- Had been stabbed multiple times and sexually assaulted
- Showed signs suggesting she may have gone along with her attacker rather than fight back
Because the case occurred in 1980, police had none of the modern tools that now aid investigations:
- No surveillance cameras
- No license plate readers
- No DNA testing at the time of the murder
Early leads were scarce, and the case quickly went cold.
Kimberly LaTourette’s 40-Year Promise
Helene’s friend Kimberly LaTourette made a vow to Helene’s parents that she would not stop trying to find the killer. For decades, she:
- Kept in touch with detectives
- Pushed for media attention
- Helped keep the case alive
- Encouraged renewed interest whenever progress stalled
Her dedication became a central force in preventing Helene’s case from being forgotten.
False Leads and Dead Ends
Over the years, investigators explored many possibilities, including:
- People Helene knew from the radio station
- Her former boyfriend
- Various serial killers active in that era, including Ted Bundy
- The notorious duo Henry Lee Lucas and Ottis Toole, who falsely confessed to the murder
The serial-killer confessions initially seemed promising, but investigators eventually proved those men were not in Colorado when Helene was killed.
The DNA Breakthrough
The case gained new momentum in 1998, when untouched DNA evidence from the crime scene was finally tested. Although the profile didn’t match anyone in the FBI’s CODIS database, it remained crucial evidence.
In 2019, Detective Shannon Jensen revived the investigation using:
- Genetic genealogy
- GEDmatch
- Family-tree analysis
- Contacting distant relatives of potential matches
That process led her to a family line connected to Curtis Allen White, who had a violent criminal history and had been paroled in Colorado around the time of the murder.
Identifying the Killer: Curtis Allen White / James Curtis Clanton
Jensen discovered that White later lived under the name James Curtis Clanton in Florida. Investigators:
- Tracked him down
- Watched him closely
- Collected beer mugs he used at a bar
- Matched DNA from those mugs to the DNA from Helene’s clothing
The DNA match confirmed White as the killer.
The Confession
When detectives brought Clanton in under the pretense of investigating identity theft, they used the interview to confront him about Helene’s murder. On tape, Clanton:
- Acknowledged he had been in Colorado in 1980
- Admitted he saw Helene get off the bus
- Confessed to forcing her into his car
- Said he raped and stabbed her
- Ultimately admitted, “I did it”
He later pleaded guilty, avoiding a trial.
Resolution and Aftermath
In July 2020, Clanton was sentenced to life in prison. For Helene’s family and friends, the verdict brought long-awaited justice, though not closure.
The episode ends by emphasizing:
- Helene was never forgotten
- Kimberly’s promise mattered
- Modern forensic genealogy solved what old-fashioned policing could not
- Justice, even after decades, is still possible
Key Takeaways
- A single promise sustained the case for 40 years.
- Genetic genealogy was the breakthrough tool that identified the killer.
- False confessions from serial killers delayed the truth.
- Persistent advocacy from friends and investigators was essential.
- Helene Pruszynski’s case is a powerful example of cold-case perseverance leading to justice.