INVESTIGATIVE CASE DOSSIER: HAILEY DUNN MURDER: THE 2010 COLORADO CITY CHEERLEADER COLD CASE & THE 2021 SHAWN ADKINS INDICTMENT
- Victim: Hailey Darlene Dunn (13 years old; Eighth-Grade Cheerleader)
- Date of Disappearance: December 27, 2010
- Date Remains Discovered: March 16, 2013 (Near Lake J.B. Thomas, Scurry County, Texas)
- Location: Colorado City, Mitchell County, Texas
- Accused Perpetrator: Shawn Casey Adkins (Arrested and indicted for Murder in June 2021)
- Investigating Agency: Texas Rangers, Colorado City Police Department, FBI
- Forensic Breakthrough: Cellular tower geospatial mapping, digital forensics, and skeletal trauma analysis
- Judicial Status: Indicted for Murder by Mitchell County Grand Jury in June 2021
On the afternoon of Monday, December 27, 2010, thirteen-year-old middle school cheerleader and athlete Hailey Darlene Dunn vanished from her home in the small West Texas town of Colorado City. Her mother’s live-in boyfriend, Shawn Casey Adkins, claimed Hailey told him she was walking to her father’s house and then to a friend’s home for a sleepover—a destination she never reached. Over the following two years, the Hailey Dunn disappearance became a national media focus. In March 2013, outdoor enthusiasts discovered human skeletal remains in a remote, cactus-strewn field near Lake J.B. Thomas in adjacent Scurry County, which forensic anthropologists confirmed belonged to Hailey. In June 2021, following a comprehensive multi-year cold case review by the Texas Rangers and FBI, Shawn Adkins was formally arrested and indicted for Hailey’s murder.
The Colorado City Disappearance & The Conflicting Alibis
On December 27, 2010, thirteen-year-old Hailey Dunn was left at her home on Chestnut Street in Colorado City with Shawn Adkins while her mother, Billie Jean Dunn, was at work. Adkins stated that Hailey left the house at 3:15 PM. However, when Billie Jean arrived home that evening, Hailey was missing, and friends confirmed they had made no sleepover plans.
Colorado City Police, Mitchell County Sheriff’s deputies, and Texas Rangers launched an urgent search. Within days, investigators identified glaring contradictions in Adkins’s statements: cell phone tower records showed that immediately after Hailey disappeared, Adkins left his job, drove across several rural counties, and made multiple unexplained stops in desolate areas of Scurry County.
The 2013 Lake J.B. Thomas Discovery & Forensic Anthropology
On March 16, 2013, searchers exploring a remote pasture twenty miles northwest of Colorado City near Lake J.B. Thomas in Scurry County discovered scattered human skeletal remains. Forensic anthropologists at the University of North Texas Center for Human Identification (UNTCHI) extracted nuclear DNA and confirmed the remains were Hailey Dunn.
Autopsy and skeletal trauma analysis established that Hailey suffered catastrophic blunt force craniocerebral injuries prior to being concealed in the remote brushland.
Cellular Geolocation Forensics & The 2021 Texas Rangers Arrest
The Texas Rangers Cold Case Task Force and the FBI Cellular Analysis Survey Team (CAST) conducted an exhaustive recalculation of historical cell tower azimuth data from December 27 and 28, 2010. The digital analysis proved that Adkins’s mobile phone registered consecutive pings at the exact cell tower servicing the remote Lake J.B. Thomas body dump site during the hours immediately following Hailey’s disappearance.
On June 14, 2021, Texas Rangers arrested 35-year-old Shawn Casey Adkins in Big Spring, Texas. A Mitchell County grand jury indicted Adkins on charges of murder, setting his bail at $2 million.
Judicial Proceedings & Criminological Impact in West Texas
The arrest and indictment of Shawn Adkins provided long-sought answers to the Colorado City community. The prosecution’s dossier combines forensic anthropology, digital cell phone mapping, and behavioral analysis to construct an airtight circumstantial timeline.
The Hailey Dunn case highlights the indispensable role of the Texas Rangers Unsolved Crimes Investigation Program in systematically applying digital and geospatial forensics to resolve historic West Texas homicides.
Cellular Tower Geolocation & Digital Footprint Mapping
The Texas Rangers Cold Case Task Force and FBI cellular analysts conducted an exhaustive re-examination of cell tower records from December 27 and 28, 2010. The digital analysis revealed that Shawn Casey Adkins’s mobile phone connected to a rural cell tower near Lake J.B. Thomas in Scurry County during the exact window Hailey Dunn disappeared.
The digital trajectory contradicted Adkins’s statements that he was at work and home in Mitchell County, providing investigators with the critical geographic correlation needed to establish probable cause.
The 2013 Scurry County Skeletal Discovery & UNTCHI Forensics
On March 16, 2013, outdoor enthusiasts near Lake J.B. Thomas discovered human skeletal remains scattered in the desert scrubland. Forensic anthropologists at the University of North Texas Center for Human Identification (UNTCHI) extracted nuclear DNA and confirmed the remains belonged to Hailey Dunn.
In June 2021, a Mitchell County grand jury indicted Shawn Adkins for first-degree murder, concluding an eleven-year pursuit of truth in West Texas.
Texas Rangers Cold Case Homicide Reconstruction
The murder indictment against Shawn Casey Adkins secured by the Texas Rangers and 32nd Judicial District prosecutors in June 2021 was the result of exhaustive digital and forensic anthropology. The precise synchronization of cell tower azimuths with the remote Lake J.B. Thomas recovery site created an unassailable circumstantial timeline.
The case illustrates the exceptional capabilities of the Texas Rangers Unsolved Crimes Investigation Program in bringing resolution to complex West Texas homicides.
Community Remembrance in Colorado City, Texas
The memory of Hailey Dunn continues to inspire community safety programs and youth athletics throughout Mitchell and Scurry counties. Her family and friends have established memorial scholarships and annual vigils celebrating Hailey’s vibrant spirit as a student-athlete and cheerleader.
Rural West Texas Scene Analysis, Domestic Dynamics & The Disappearance Timeline
Thirteen-year-old Hailey Dunn vanished on December 27, 2010, from her home in Colorado City, a small municipality in West Texas. Hailey was reported missing after failing to arrive at a friend’s house or her father’s residence. Investigative scrutiny immediately converged on Shawn Adkins, the live-in boyfriend of Hailey’s mother, who was the last person known to have seen her alive. Adkins claimed Hailey had departed on foot to visit her father, but cell phone tower records and surveillance footage quickly contradicted his statements.
Forensic digital extraction of Adkins’ mobile phone revealed suspicious geolocation movements on the morning of December 27, including extensive travel between Colorado City, Big Spring, and isolated areas of Scurry County. Additionally, forensic searches of digital media uncovered disturbing search queries related to serial homicide and body disposal techniques.
Lake J.B. Thomas Remains Recovery & The 2021 Murder Indictment
In March 2013, outdoor hikers discovered human skeletal remains near Lake J.B. Thomas in rural Scurry County, approximately thirty miles northwest of Colorado City. Forensic anthropologists and the Texas Department of Public Safety Crime Lab definitively identified the remains as Hailey Dunn. In June 2021, following an intensive re-investigation by the Texas Rangers and a special grand jury, Shawn Adkins was formally arrested and indicted for the murder of Hailey Dunn, marking a pivotal step toward judicial accountability in West Texas.
Forensic Evidence Preservation, Bioinformatic Filtering & Cold Case Methodology
The forensic handling of skeletal remains recovered near Lake J.B. Thomas required specialized taphonomic and anthropological analysis. Forensic anthropologists from the University of North Texas Center for Human Identification conducted detailed skeletal reconstruction and osteological examinations, documenting peri-mortem trauma and environmental weathering patterns.
Nuclear and mitochondrial DNA extractions performed on dense cortical bone samples provided unambiguous genetic confirmation of Hailey’s identity, establishing the scientific foundation necessary for the Texas Rangers and local prosecutors to secure grand jury indictments against key persons of interest.
Chronological Case Timeline & Key Forensic Milestones
Frequently Asked Questions & Expert Case Analysis
Who was indicted for Hailey Dunn’s murder?
Shawn Casey Adkins, the former live-in boyfriend of Hailey Dunn’s mother, was arrested and indicted for murder by a Mitchell County grand jury in June 2021.
Where and when were Hailey Dunn’s remains found?
Her remains were discovered on March 16, 2013, in a remote field near Lake J.B. Thomas in Scurry County, Texas, twenty miles from her home.
What evidence connected Shawn Adkins to the crime?
Historical cellular tower triangulation mapping his phone directly at the body disposal site on the day of her disappearance, combined with forensic skeletal trauma and conflicting alibi statements.
