Case overview
On December 23, 1974, three young women drove to Seminary South Shopping Center in Fort Worth to finish Christmas shopping and never returned home. Rachel Trlica, 17, Renee Wilson, 14, and Lisa Wilson, 9, were last seen entering the mall around 3:30 p.m., but by evening their families received only a cryptic letter and an abandoned car in the parking lot. No witness came forward with a credible sighting after they entered the mall, and no physical evidence ever explained where they went.
The last confirmed movements
Rachel Trlica had married Thomas Trlica three weeks before her disappearance. On the afternoon of December 23, she picked up her friend Renee Wilson and Renee’s younger sister Lisa from their home. The three planned to shop for last-minute Christmas gifts at Seminary South Shopping Center, a busy retail destination in Fort Worth.
They left the Wilson home around 3:00 p.m. in Rachel’s 1972 Oldsmobile Cutlass. Family members expected them back by 4:00 p.m. When they did not return, calls were made and concern grew quickly. By evening, Rachel’s husband and family members drove to the shopping center to search for the car.
The Oldsmobile was found parked in the lot near Sears, unlocked and with packages visible inside. The keys were missing. The car appeared undisturbed, with wrapped gifts still on the seat. There was no sign of struggle, forced entry, or damage to the vehicle.
The letter that raised more questions
The same evening, Rachel’s husband received a handwritten letter in the mail, postmarked Fort Worth and dated December 23. The letter, signed with Rachel’s name, claimed the three had decided to leave town and would return in a few days. The tone was casual and reassuring.
Family members immediately questioned the letter’s authenticity. Rachel’s husband and her mother said the handwriting looked similar to Rachel’s but noted odd phrasing and a different signature style than she typically used. The letter contained no details that would confirm it came from Rachel, and it gave no explanation for why the car had been left behind or where the group had gone.
Police submitted the letter for handwriting analysis, but results were inconclusive. Investigators never determined with certainty whether Rachel wrote it under duress, whether someone else forged it, or whether it was genuine. The letter remains one of the most debated pieces of evidence in the case.
What investigators found at the mall
Fort Worth police launched an immediate investigation. Detectives canvassed the shopping center and interviewed employees and shoppers who had been present on December 23. Despite the mall being crowded in the final days before Christmas, no credible witness came forward with a confirmed sighting of the three women inside the mall or in the parking lot after their arrival.
Security footage from the era was limited and not preserved in a way that could be reviewed decades later. Investigators focused on the timeline between 3:30 p.m., when the group was believed to have entered the mall, and the time the car was discovered that evening.
The packages found in the car were examined, but they did not help narrow the timeline. It was unclear whether the gifts had been purchased that day or earlier. No receipts were recovered that could establish what time the trio had been inside specific stores.
Investigators also searched the surrounding area, including nearby fields, drainage areas, and rural land outside Fort Worth. No physical evidence, clothing, or personal belongings linked to the three women were recovered.
Theories that emerged over time
Several theories developed in the years following the disappearance, though none were supported by physical evidence or witness testimony strong enough to lead to charges.
One early theory centered on the possibility that the women had been abducted while in the parking lot or shortly after leaving the mall. The lack of witnesses and the undisturbed condition of the car complicated this scenario. No one reported seeing a confrontation, and there were no signs of struggle inside or around the vehicle.
Another theory suggested the letter indicated the women had left voluntarily, either to run away or meet someone. Family members rejected this idea, citing the implausibility of a 9-year-old planning or participating in such an act, and Rachel’s recent marriage, which gave no indication of instability or desire to leave.
Attention also turned to individuals known to the victims. Rachel’s husband, Thomas Trlica, was questioned multiple times but never charged. Rachel’s former boyfriend, Tommy Arnold, was also interviewed. Both denied involvement, and no evidence connected either man to the disappearance.
In later years, some investigators considered the possibility that the women encountered someone at the mall by chance, someone who either lured or forced them away. This theory aligned with the lack of evidence at the scene but offered no leads that could be pursued.
Decades without resolution
The Fort Worth Police Department kept the case open, and periodic reviews were conducted as investigative techniques improved. In the 1990s and again in the 2000s, detectives re-examined evidence and re-interviewed witnesses, but no breakthroughs emerged.
The letter remained a focal point. In 2001, advanced handwriting analysis was conducted, but experts could not definitively confirm or rule out Rachel as the author. The inconclusiveness left the document as ambiguous as it had been in 1974.
DNA technology offered hope for progress, but without bodies, personal effects, or biological evidence recovered from the scene, there was little material to test. Investigators submitted items from the car for re-examination, but no new forensic links were identified.
Family members continued to advocate for attention to the case. Rachel’s mother and Renee and Lisa’s family gave interviews over the years, emphasizing that the women would not have left willingly and that someone must know what happened. They maintained that the letter was either coerced or fabricated.
Unresolved questions
The case remains open and classified as a missing persons investigation. The Fort Worth Police Department has not named a suspect, and no arrests have been made.
Several unresolved questions define the case. Investigators never determined what the women did between arriving at the mall and the time the car was found. No confirmed sighting placed them inside a specific store or in contact with anyone in the parking lot.
The origin of the letter remains unexplained. If Rachel wrote it, the circumstances under which she did so are unknown. If someone else wrote it, the motive and method of obtaining details about the family remain unclear.
The lack of physical evidence has been the most significant barrier. Without remains, a crime scene, or forensic material, the investigation has relied on witness statements and circumstantial details, none of which have produced a definitive lead.
The case is periodically referenced in discussions of unsolved disappearances in Texas, and investigators have said they remain open to new information. Tipsters are encouraged to contact the Fort Worth Police Department, and the case file remains accessible to cold case units for review.
Where to look next
- Documentary: “Disappeared: The Fort Worth Missing Trio” (Investigation Discovery)
- Podcast: “The Fort Worth Missing Trio” (“Criminology”)
