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Solved case · 2014

Murder of Nancy Pfister

Also known as Nancy Pfister

SOLVEDCONVICTEDCHARGES DISMISSED / WITHDRAWN
Updated
Updated Jul 18, 2026
Buttermilk Mountain, near Aspen, ColoradoView on the map

The short answer

Murder of Nancy Pfister in brief

Nancy Pfister, a well-known Aspen-area resident, was found beaten to death in a closet at her Colorado home in February 2014. Her former tenant, Trey Styler, confessed and pleaded guilty to first-degree murder in exchange for charges being dropped against his wife, Nancy Styler.

Start hereCrime Watch Daily: Who Killed Nancy Pfister? - Pt. 1

Key facts

Year
2014
Place
Buttermilk Mountain, near Aspen, Colorado
Status
SOLVEDSolved
Victim
Nancy Pfister
Outcome
Convicted: Trey Styler; Charges dismissed / withdrawn: Kathy Carpenter and Nancy Styler

The coverage index

Where to watch & listen

1 piece from 1 creator: ranked, with duplicates removed and short clips set aside.

Start here

Crime Watch Daily: Who Killed Nancy Pfister? - Pt. 1

Video · YouTube · 2015

The creator's telling of the case, the strongest entry point on file.

Watch on YouTube

Titles and descriptions are the creators’ own and may not reflect current legal status. The sourced facts are in the file below. Players load only when you press play. Suggest coverage we’re missing.

The case file

What happened

Nancy Merle Pfister was born July 4, 1956, in Orofino, Idaho, and raised in Basalt, Colorado, where her father had founded the Buttermilk Ski Resort. She was widely known in the Aspen area as a "small-town socialite" and had raised two children as a single mother in a log home built by her father in 1991. Shortly before her death, Pfister rented part of the home to Trey Styler, a retired doctor, and his wife Nancy Styler, in order to help pay her mortgage.

On the evening of February 26, 2014, Pfister's friend Kathy Carpenter grew concerned after Pfister missed work and did not return calls. Carpenter drove to Pfister's secluded home on Buttermilk Mountain and, using a skeleton key, opened a locked closet in the master bedroom, where she discovered Pfister's body. Pfister had been beaten with a hammer and struck with an ax; the medical examiner determined she died of blunt force trauma to the head and exsanguination, with no defensive wounds, suggesting she was attacked while asleep. Investigators found the mattress had been flipped to conceal a large pool of blood beneath it.

Investigators focused on the Stylers after learning of a rent dispute: the couple had stopped paying rent over unaddressed maintenance issues, and Pfister had begun evicting them. Both Stylers denied involvement when questioned, and Trey Styler failed a polygraph, but police lacked sufficient evidence to charge them at the time. A break came when a city worker in Basalt found a bloody hammer, pill bottles bearing Pfister's name, and a vehicle registration for the Stylers' Jaguar in a public trash bin behind the motel where the couple was staying; a key to the closet where Pfister's body was found was also located outside their motel room. The Stylers were arrested on March 3, 2014.

Investigators later theorized that Kathy Carpenter may have assisted in the crime, based on her 911 call and statements she made about the crime scene, and she was arrested and charged with first-degree murder. Carpenter maintained her innocence throughout.

In October 2014, both Trey and Nancy Styler were charged with Pfister's murder. Shortly afterward, Trey Styler confessed, describing in detail how he beat Pfister with a hammer and then struck her with an ax after entering her home to confront her over her treatment of his wife regarding the rental dispute. As part of a plea agreement, charges against Nancy Styler and Kathy Carpenter were dropped, and Trey Styler pleaded guilty to first-degree murder, receiving a life sentence later commuted to 20 years.

On August 6, 2015, Trey Styler was found dead in his cell at Arrowhead Correctional Facility in Cañon City, Colorado; an autopsy concluded he died by suicide. He was 67. In 2015, Nancy Styler published a memoir about the case that drew criticism from Pfister's family and local officials, including then-Pitkin County Sheriff Brad Gibson.

7 dated entries · 1956–2015

Timeline

  1. Nancy Pfister born in Orofino, Idaho.

  2. Trey and Nancy Styler move into Nancy Pfister's home as tenants.

  3. Kathy Carpenter finds Nancy Pfister's body in a locked closet in the master bedroom.

  4. Trey and Nancy Styler are arrested after evidence, including a bloody hammer, is found in a Basalt trash bin.

  5. Trey and Nancy Styler are charged with first-degree murder in Nancy Pfister's death.

  6. Nancy Styler publishes a memoir, 'Guilt by Matrimony,' about the case; charges dropped against her and Kathy Carpenter as part of Trey Styler's plea deal.

  7. Trey Styler found dead by suicide in his cell at Arrowhead Correctional Facility, Cañon City, Colorado.

4 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Nancy Pfister

    VICTIM

    Found beaten to death in her home on February 26, 2014.[3]

  • Trey Styler

    CONVICTED

    Pleaded guilty to first-degree murder of Nancy Pfister; sentenced to life, later commuted to 20 years.[3]

  • Kathy Carpenter

    CHARGES DISMISSED / WITHDRAWN

    Charged with first-degree murder in the killing of Nancy Pfister; Pitkin County prosecutors dropped the charge against her on 20 June 2014 following Trey Styler's guilty plea and confession, with the district attorney stating new evidence meant they could not prove the charges against her. She was never convicted. No charges remain pending against her in this case.[3]

  • Nancy Styler

    CHARGES DISMISSED / WITHDRAWN

    Charged with first-degree murder in the killing of Nancy Pfister; Pitkin County prosecutors dropped the charge against her on 18 June 2014 as part of husband Trey Styler's guilty plea to second-degree murder, with the district attorney stating new evidence meant they could not prove the charges against her. She was never convicted. No charges remain pending against her in this case.[3]

From the record

Quick answers

Who was convicted?
Trey Styler: Pleaded guilty to first-degree murder of Nancy Pfister; sentenced to life, later commuted to 20 years.

3 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 2 Press
  • 1 Encyclopedic
  1. Murder of Nancy Pfister

    EncyclopedicWikipediaAccessed Jul 18, 2026

Trust

Record history

First published
Jul 18, 2026
Corrections
None

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