Overview

• Full name: Brittany Evonne Sara Phillips
• Age at death: 19 years old
• Last confirmed sighting: September 27, 2004
• Date body discovered: September 30, 2004
• Location: 9407 East 65th Street, Apartment 3216
• City: Tulsa
• County: Tulsa County
• State: Oklahoma
• Case classification: Unsolved homicide involving sexual assault and strangulation
• Investigating agency: Tulsa Police Department
• Current status: Open, unsolved cold case as of October 2026

Case circumstances: Brittany was last known to be alive on the evening of September 27, 2004, after attending classes and spending time with a friend. Three days later, police conducting a welfare check discovered her body inside her apartment. Investigators determined that she had been strangled, and the investigation also documented evidence of sexual assault. Although investigators recovered forensic evidence and pursued numerous leads, no one has been publicly charged with her murder.

Detailed Case Breakdown

Brittany Evonne Sara Phillips:
The Unsolved 2004 Murder of a Tulsa, Oklahoma College Student

More than two decades after 19-year-old Brittany Evonne Sara Phillips was found murdered inside her Tulsa, Oklahoma apartment, the question of who killed her remains unanswered. Her death in September 2004 launched a homicide investigation that has involved forensic DNA testing, hundreds of potential leads, and years of determined advocacy by her mother, Dr. Maggie Zingman.

What began as a young college student’s promising future became one of Tulsa’s enduring unsolved homicide cases. Despite advances in forensic technology and renewed public attention, Brittany’s killer has not been publicly identified.

Case Summary

• Full name: Brittany Evonne Sara Phillips
• Age at death: 19 years old
• Last confirmed sighting: September 27, 2004
• Date body discovered: September 30, 2004
• Location: 9407 East 65th Street, Apartment 3216
• City: Tulsa
• County: Tulsa County
• State: Oklahoma
• Case classification: Unsolved homicide involving sexual assault and strangulation
• Investigating agency: Tulsa Police Department
• Current status: Open, unsolved cold case as of October 2026

Case circumstances: Brittany was last known to be alive on the evening of September 27, 2004, after attending classes and spending time with a friend. Three days later, police conducting a welfare check discovered her body inside her apartment. Investigators determined that she had been strangled, and the investigation also documented evidence of sexual assault. Although investigators recovered forensic evidence and pursued numerous leads, no one has been publicly charged with her murder.

Brittany Phillips: Her Life Before the Murder

Brittany Phillips was a young woman beginning to establish her independence and plan her future. She had graduated from Union High School in the Tulsa area and had ambitions of pursuing a career in pharmaceutical research.

After high school, Brittany attended college in Florida. However, she missed home and decided to return to Oklahoma. She enrolled at Tulsa Community College and moved into an apartment near the high school she had previously attended.

Her apartment represented an important step toward adulthood. Brittany was attending classes, maintaining friendships, and building the foundation for a career.

Her mother, Dr. Maggie Zingman, lived in Chandler, Oklahoma, while Brittany attended college in Tulsa. The two remained close, and Maggie regularly contacted her daughter.

By September 2004, Brittany was settling into her college routine. Nothing publicly documented suggested that she expected the danger that would soon enter her life.

Brittany’s Final Known Evening

On Monday, September 27, 2004, Brittany attended Tulsa Community College and spent time with a friend.

According to investigators, she dropped the friend off at approximately 9:45 p.m. before heading toward her apartment on East 65th Street.

That evening became the last confirmed sighting of Brittany alive.

Investigators have not publicly established the precise moment her attacker entered the apartment or the exact time she was killed. Although September 27 has frequently been treated as the presumed date of her murder, later information has raised questions about the original timeline.

September 30, 2004: The Discovery

Brittany’s mother attempted to contact her on September 28 and September 29 but received no response.

Initially, Maggie believed Brittany might be busy studying or attending classes. However, the continued silence became increasingly concerning.

Friends also became worried when Brittany failed to appear as expected. Someone went to her apartment, noticed circumstances that seemed unusual, and contacted authorities.

At approximately 9:59 p.m. on September 30, Tulsa police officers responded to Brittany’s apartment at 9407 East 65th Street to check on her welfare.

Officers entered the residence and discovered Brittany deceased.

The medical findings established that Brittany had died from strangulation. Investigators also determined that she had been sexually assaulted.

Her death was classified as a homicide, beginning an investigation that would continue for decades.

Investigation History and Physical Evidence

The Apartment Crime Scene

Tulsa police examined Brittany’s apartment for evidence that could help establish how the attacker entered, what happened inside, and whether the perpetrator had any connection to her.

Historical accounts describe indications of a possible disturbance, including an open balcony or patio entrance and displaced window screens.

However, published descriptions of forced entry have not been entirely consistent. Some accounts reported signs suggesting a break-in, while others indicated there was no conclusive evidence of forced entry.

Because of these differences, the precise method of entry remains an unresolved question rather than an established fact.

Investigators collected physical evidence, including biological material that became important to subsequent forensic examinations.

Investigators Pursue Potential Suspects

Detectives examined Brittany’s personal connections, the surrounding apartment complex, and reports of other criminal activity in the area.

Vic Regalado, who worked as a Tulsa homicide detective during the investigation and later became Tulsa County sheriff, described efforts to examine hundreds of possible suspects and persons with potential connections to the surrounding neighborhood.

The investigation included scrutiny of individuals associated with suspicious behavior and sexual offenses.

Regalado also expressed the investigative theory that the killer may have previously observed Brittany and known where she lived.

That possibility has never been established as a confirmed account of the murder.

Investigators did not publicly identify a person who could be conclusively connected to Brittany’s killing.

DNA Evidence and the 2017 Composite

One of the most significant investigative developments came in 2017, when Tulsa police worked with Parabon NanoLabs to develop a forensic composite based on DNA recovered during the investigation.

The technology, known as DNA phenotyping, uses genetic information to estimate certain physical characteristics.

The resulting image depicted a possible white male with a fair complexion, potentially light-colored eyes, and brown or blond hair. The illustration portrayed an estimated age of approximately 25 in 2004.

The composite attracted renewed public attention and appeared to provide a promising direction for the investigation.

However, it was an investigative approximation, not a photograph or positive identification.

The 2019 DNA Finding

In 2019, Tulsa police announced a critical correction to the earlier DNA-based lead.

Further investigation determined that the individual associated with the DNA used to generate the composite was not involved in Brittany’s murder.

This meant the widely circulated image could no longer be treated as a reliable depiction of her killer.

The development illustrated an important limitation of forensic technology: biological evidence may be scientifically useful without necessarily belonging to the perpetrator.

It also meant investigators needed to continue examining other evidence and potential leads.

Renewed Attention to Other Biological Evidence

Later reporting described investigators examining additional biological material, including DNA reportedly recovered from beneath Brittany’s fingernails.

Such material can be relevant in a homicide investigation because it may contain biological traces transferred during physical contact.

However, the presence of DNA alone does not establish who committed a crime. Investigators must determine whose DNA is present, how it was deposited, and whether it is connected to the offense.

By 2024, reporting indicated that investigative genetic genealogy was being pursued as a potential avenue for identifying the killer.

No publicly verified identification resulting from that work had been announced.

Theories and Unresolved Questions

Did Brittany Know Her Attacker?

One possibility considered in discussions of the case is that Brittany may have known the person who killed her.

This question arises partly from uncertainty surrounding how the attacker gained access to her apartment.

However, there is no publicly established evidence proving that Brittany voluntarily admitted the perpetrator or that the attacker belonged to her social circle.

The possibility remains a theory, not a confirmed investigative conclusion.

Was Brittany Being Watched?

Another theory is that someone had previously observed Brittany’s movements and learned her routine.

Investigators examined suspicious activity around the apartment complex, and Regalado publicly suggested the perpetrator may have known where she lived.

That interpretation could explain how an attacker selected a particular apartment, but it does not establish that stalking occurred.

No specific stalking incident directly connected to Brittany’s murder has been publicly verified.

Was the Killing Connected to Other Crimes?

Investigators also examined individuals associated with sexual offenses and suspicious conduct in the surrounding area.

Because Brittany was sexually assaulted and strangled, investigators had reason to consider whether someone with a history of similar offenses might be responsible.

Nevertheless, no publicly confirmed connection between her murder and another homicide or sexual assault has established the identity of her attacker.

Could the Original Timeline Be Wrong?

One of the most intriguing unresolved questions emerged nearly two decades after Brittany’s death.

In 2023, her family discussed a birthday card Brittany had mailed to her grandfather. The envelope reportedly carried a September 29, 2004, postal marking.

Because Brittany was last confirmed seen on September 27, the card raised questions about when it had been mailed and whether the original reconstruction of her final days was complete.

However, a postal marking does not necessarily establish when someone personally deposited an envelope into the mail.

The card’s significance depends on the precise postal processing information and other supporting evidence.

There has been no publicly confirmed determination that this discovery conclusively changed Brittany’s time of death.

Latest Publicly Available Investigative Updates

2023: A Birthday Card Raises New Questions

In 2023, Brittany’s family revealed the discovery of an old birthday card that she had mailed shortly before her death.

The card had reportedly been stored among family belongings for years.

Its postal marking became significant because it appeared to introduce a possible inconsistency into the original timeline of Brittany’s final days.

The discovery renewed interest in reconstructing the period between September 27 and September 30, 2004.

However, no public announcement established that the card conclusively changed the official timeline or identified a suspect.

2024: Genetic Genealogy and Fundraising Efforts

In September 2024, approximately 20 years after Brittany’s murder, her mother continued seeking resources to support advanced forensic testing.

Public reporting described efforts to raise money for additional DNA analysis and the possibility of using investigative genetic genealogy to pursue new leads.

Genetic genealogy can sometimes help investigators identify unknown individuals by comparing crime-scene DNA with genetic profiles and constructing family relationships.

Whether the technique can resolve Brittany’s murder depends on the quality, origin, and suitability of the available evidence.

No completed genealogical identification of Brittany’s killer was publicly confirmed.

September 2025: Twenty-One Years Without Answers

In September 2025, local news coverage documented another anniversary of Brittany’s death and her mother’s continuing efforts to preserve her memory.

Dr. Zingman participated in a memorial observance and emphasized the importance of community support.

The anniversary coverage confirmed that the family remained committed to seeking answers and that DNA had not publicly established the killer’s identity.

The event was a remembrance and public awareness effort, not an announcement of an arrest or a forensic breakthrough.

Case Status as of October 28, 2026

The Tulsa Police Department continues to list Brittany Phillips among its unsolved cold cases. The Oklahoma State Bureau of Investigation also includes her in its publicly accessible cold-case records.

The latest case-specific reporting located includes the September 2025 anniversary coverage. No publicly confirmed developments after that report were located establishing an arrest, criminal charges, identification of the killer, or resolution of the case.

The investigation therefore remains publicly classified as unsolved. The absence of a newly announced breakthrough does not establish that detectives have stopped working on the case.

A Mother’s Campaign for Justice

Perhaps the most recognizable public effort associated with Brittany’s case is her mother’s Caravan to Catch a Killer.

Following Brittany’s murder, Dr. Maggie Zingman began traveling across the United States in vehicles decorated with her daughter’s photograph and information about the investigation.

The campaign was designed to bring Brittany’s case to people who might never have encountered the original Oklahoma news coverage.

Over the years, Maggie traveled hundreds of thousands of miles, visited dozens of states, distributed information, and encouraged members of the public to contact investigators with potential leads.

Her advocacy also extended to other families affected by unsolved murders.

The campaign became a visible reminder that the consequences of homicide extend far beyond the initial investigation. Families can spend decades waiting for answers while trying to preserve the memories of those they have lost.

For Maggie, the effort has remained focused on accountability for Brittany’s death and ensuring her daughter’s life is not forgotten.

Conclusion: Who Killed Brittany Phillips?

Brittany Evonne Sara Phillips was a college student with plans for her future when her life was violently taken in September 2004.

Her case has involved extensive investigative work, biological evidence, forensic reconstruction, public appeals, and renewed interest in genetic genealogy.

Yet the most important question remains unanswered: who entered Brittany’s apartment and killed her?

The investigation has also left significant uncertainties about the attacker’s method of entry, the precise timing of the homicide, and whether the perpetrator had previously encountered Brittany.

More than 22 years after her death, the case remains an open homicide investigation.

Anyone with information about Brittany’s murder, including seemingly minor observations from September 2004, is encouraged to contact the Tulsa Police Department Homicide Unit at 918-596-9135 or Tulsa Crime Stoppers at 918-596-2677.

Information should be provided directly to investigators rather than shared as unverified accusations online.

Brittany’s family continues to seek the answers that have eluded them for more than two decades. Her story remains one of a young life lost, a family’s determination, and the possibility that a previously overlooked piece of information could still help bring justice.