The tragic murder of Sophia Sullivan in March 2018 remains unresolved, and a recent examination by the Texas Observer highlights significant missteps by local law enforcement and the Texas Rangers that have contributed to this ongoing injustice.
Sophi Sullivan, a 31-year-old teacher in Marfa, was found brutally stabbed to death in her home in Fort Davis. Her 7-year-old son, who witnessed the attack, identified his father, Danny Sullivan, as the masked killer. Despite this testimony, the investigation has been plagued by errors and oversights, leading to a mistrial and no retrial date set by the current district attorney.
According to the Texas Observer, critical investigative failures by the Jeff Davis County Sheriff’s Department, led by Sheriff Bill Kitts, and Texas Ranger Jeff Vajdos have marred the case. The initial response by Sheriff Kitts, Chief Deputy Jerry Walker, and Constable Clay Woods included a crucial error in determining the time of death based on the appearance of the blood. This misjudgment set the stage for a series of investigative blunders.
One of the most glaring oversights was the failure to search Danny Sullivan’s trailer in Odessa, where he stayed during the workweek. This should have been a priority considering the lack of a murder weapon at the scene and the possibility that evidence could have been transported there. Despite months passing and a change in ownership of the trailer, no search warrant was obtained until it was too late to gather potential evidence.
Additionally, key video evidence was lost because investigators only reviewed footage from the hours immediately preceding the discovery of Sophi’s body, rather than extending the timeframe to cover the previous day when the murder likely occurred. District Attorney Sandy Wilson, who handled the initial trial, expressed frustration over these lost opportunities, telling the Texas Observer, “Do you think they even bothered to get 24 hours before? That’s what I had to work with.”
The investigative shortcomings extended to the handling of Sophi’s phone, which continued to ping in the area after her death but was never found. Danny claimed he could have helped locate the phone using the “Find My iPhone” app, but investigators did not pursue this lead or subpoena the relevant Google account data.
Further complicating the case, the local justice of the peace, who is typically responsible for death investigations in rural Texas counties, was out of town, resulting in a less thorough initial investigation. An autopsy revealed that Sophi was missing valuable jewelry, which was later found in Danny’s possession months after his release on bond.
The Texas Observer also noted delays in interviewing key witnesses, with some not being contacted for more than a year. Ranger Vajdos admitted in court that he did not review bodycam footage of the crime scene despite repeated requests from the prosecution. Vajdos, who was with the Texas Rangers during the investigation, is now a reserve officer with the Alpine Police Department.
The defense, led by attorney Jim Darnell, capitalized on these investigative failures during the trial, leading the jury to deadlock with a 9-3 vote in favor of conviction but resulting in a mistrial. Jurors interviewed by the Texas Observer expressed astonishment at the police missteps, particularly the failure to search the trailer, which one juror described as “disgusting.”
The current district attorney, Ori White, has yet to set a retrial date, leaving Sophi’s family and friends in limbo. In the meantime, Sophi’s mother, Theresa Blain, has won a wrongful death lawsuit against Danny, securing a civil determination of his responsibility and $7 million in damages.
As the case remains unresolved, it underscores the challenges faced by rural law enforcement in handling complex homicide investigations and the need for improved training and resources to prevent such investigative failures in the future.
For more details on this case and the investigation, visit the Texas Observer’s full report.

Gross incompetence, but what can you expect.
One of the problems with the Texas Rangers is that they often promote troopers from the Highway Patrol to the Ranger Division, and those troopers have never been a detective anywhere. As for rural law enforcement, they are usually minimally trained and not nearly as proficient as big-city and big-county law enforcement. My guess is that this Ranger knew a lot about writing tickets but not so much about investigating crimes.