Case File

The Alissa Turney Case — Unsolved Arizona Disappearance

Phoenix, Arizona, 2001 — Missing person case, charges dismissed 2023

🇺🇸 American

Published June 3, 2026

The Alissa Turney Case — Unsolved Arizona Disappearance
EVIDENCE

The Case

The Alissa Turney case is a missing-person and suspected-homicide investigation that has remained unsolved for more than two decades. Alissa Marie Turney, born April 3, 1984, disappeared on May 17, 2001, from the Phoenix/Paradise Valley area of Arizona when she was just 17 years old. Despite extensive investigation, public advocacy by her sister, and criminal charges filed nearly 20 years after her disappearance, Alissa's body has never been recovered and no one has been convicted in connection with her suspected death.

The case gained renewed national attention through the tireless efforts of Alissa's younger sister, Sarah Turney, who created the Voices for Justice podcast and campaigned for years to bring attention to her sister's disappearance. The investigation ultimately focused on Alissa's stepfather, Michael Turney, who was charged with second-degree murder in August 2020. However, the prosecution ended without a conviction when charges were dismissed in July 2023, leaving the case legally and factually unresolved.

The Crime

On May 17, 2001, the last day of Alissa's junior year of high school, she vanished from Phoenix, Arizona. According to Michael Turney's account to police, Alissa had left a note indicating she was running away to California. He later claimed to have received a phone call from her. However, these claims became central points of suspicion as investigators re-examined the circumstances of her disappearance years later.

Timeline

17 May 2001

Alissa Turney disappears

Seventeen-year-old Alissa Marie Turney disappears from the Phoenix/Paradise Valley area on the last day of her junior year of high school. A note is said to have been found.

17 May 2001

Initial missing person report filed

Michael Turney reports Alissa missing to police and claims she left a note saying she had run off to California. Police initially do not suspect that a crime has been committed.

1 January 2008

Case reopened

Phoenix Police reopen the investigation into Alissa's disappearance following renewed attention, including a false claim made by inmate Thomas Hymer.

1 August 2020

Michael Turney arrested

Michael Turney is arrested and charged by a grand jury in Maricopa County with second-degree murder in connection with Alissa's disappearance nearly two decades earlier.

1 July 2023

Charges dropped

The murder case against Michael Turney ends without a conviction. Sources report that the charges were dropped, or that he was acquitted, without a murder conviction being obtained.

Police initially treated the case as a runaway situation and did not suspect foul play at the time of the initial report. The investigation remained dormant for years, with Alissa classified as a missing person rather than a suspected homicide victim. The alleged note and the reported phone call were the primary pieces of evidence suggesting Alissa had left voluntarily, but these would later be scrutinized as the investigation evolved.

The core allegation that eventually emerged was that Alissa did not run away as initially believed, but was instead murdered and her body concealed. However, without physical evidence or remains, prosecutors faced significant challenges in building a criminal case. The suspected modus operandi was never proven in court, and the exact circumstances of what happened to Alissa on that day in May 2001 remain unknown.

The Victim

Alissa Marie Turney was a typical American teenager on the cusp of adulthood when she disappeared. At 17, she was completing her junior year of high school and looking forward to her senior year and graduation. Those who knew her described a young woman with her whole life ahead of her, making her sudden disappearance all the more tragic and suspicious to those who knew her well.

Alissa lived with her stepfather Michael Turney and her younger sister Sarah. The family dynamics and the relationship between Alissa and her stepfather would become central to the investigation as it developed over the years. Sarah Turney, who was much younger when her sister disappeared, would later become the primary advocate for keeping Alissa's case in the public eye, refusing to let her sister be forgotten.

Investigation

The investigation into Alissa's disappearance occurred in distinct phases. Initially, Phoenix Police treated the case as a missing person report, accepting the explanation that Alissa had run away. This remained the status of the case for seven years, with no active investigation into potential foul play.

In 2008, the case was reopened after receiving renewed attention, including a false claim made by prison inmate Thomas Hymer. This reopening marked a turning point, as investigators began to look more critically at the circumstances surrounding Alissa's disappearance and the evidence that had been accepted at face value in 2001.

As the reinvestigation progressed, focus increasingly centered on Michael Turney, Alissa's stepfather. Investigators examined the alleged note, the claimed phone call, and other aspects of his account of Alissa's disappearance. The case slowly built over more than a decade of renewed investigation, with detectives working to overcome the significant challenges posed by the passage of time and the lack of physical evidence.

The breakthrough came in August 2020, when a Maricopa County grand jury indicted Michael Turney on charges of second-degree murder. The arrest came nearly two decades after Alissa's disappearance, representing both a significant development and highlighting the extraordinary difficulty of prosecuting a murder case without a body or crime scene.

Trial and Verdict

Michael Turney was charged with second-degree murder in Maricopa County in connection with Alissa's disappearance and suspected death. The case proceeded through the criminal justice system, with prosecutors attempting to prove that Michael Turney had murdered his stepdaughter despite the absence of remains or definitive physical evidence linking him to her death.

However, the prosecution faced insurmountable challenges. Without Alissa's body, without a proven crime scene, and with the passage of more than 20 years since her disappearance, establishing guilt beyond a reasonable doubt proved impossible. The case ended in July 2023 without a murder conviction. Sources describe this outcome inconsistently, with some reporting that charges were dismissed and others stating that Michael Turney was acquitted, but the legal result was the same: no conviction was secured.

The outcome left the case in legal limbo. While Michael Turney had been formally charged and faced trial, the criminal justice system did not produce a definitive answer about what happened to Alissa Turney. The dismissal or acquittal meant that, legally, the case remained as unresolved as it had been for the previous two decades.

Today

Alissa Turney remains missing, and her case continues to be classified as an unsolved missing-person investigation. Her body has never been recovered, and no one has been convicted in connection with her disappearance or suspected death. The case remains open with Phoenix Police, though the prospects for resolution grow dimmer with each passing year.

The case has generated substantial media coverage, particularly in recent years due to Sarah Turney's advocacy efforts. Multiple television programs have featured the case, including 20/20's episode "What Happened to Alissa?" (Season 3, Episode 57), Dateline Unforgettable's segment "What Happened to Alissa Turney?", and Dateline NBC's December 2023 episode "The Day Alissa Disappeared." Oxygen has produced multiple segments on the case, and Apple TV released "Family Secrets: The Disappearance of Alissa Turney."

Sarah Turney's Voices for Justice podcast has been repeatedly cited as a major force in bringing renewed public attention to her sister's case. The podcast and Sarah's advocacy work represent a modern phenomenon in true crime: family members using digital platforms and social media to keep cold cases alive in public consciousness and pressure law enforcement to continue investigating.

The Alissa Turney case stands as a reminder of the challenges inherent in investigating and prosecuting suspected homicides without physical evidence. It also demonstrates the power of persistent advocacy and the role that family members and media attention can play in keeping cold cases from being forgotten, even when the criminal justice system cannot provide closure or definitive answers about what happened.

Media coverage

TV series

  • Family Secrets: The Disappearance of Alissa Turney(2026)

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