Sherri Ann Jarvis (Walker County Jane Doe)

At about 9:30 a.m. on November 1, 1980, a truck driver discovered the body of a teenage girl lying face down in a grassy area roughly twenty feet from the shoulder of Interstate 45 just north of Huntsville, Texas, near the Sam Houston National Forest. She was unclothed; a necklace, red leather sandals, and pantyhose were recovered near the scene. An autopsy determined she had been severely beaten, sexually assaulted, and killed by ligature strangulation, likely with pantyhose. The evening before, on Halloween night, witnesses had seen the girl at a Gulf gas station on Huntsville's south side and at the Hitchin' Post Truck Stop, where she asked for directions to the Texas Department of Corrections' Ellis prison farm and said she was from the Rockport and Aransas Pass area of the Texas coast.

Despite those sightings, investigators could not identify her. She was buried in January 1981 as an unidentified person, and for four decades she was known only as Walker County Jane Doe. Her remains were exhumed in 1999 so that forensic examiners could take DNA samples, but the STR and mitochondrial DNA profiles developed at the time produced no matches. The Walker County Sheriff's Office formally reopened the case in November 2015, with Detective Thomas Bean assigned to the investigation.

In July 2020, the sheriff's office partnered with Othram Inc., a forensic genealogy laboratory in The Woodlands, Texas. After initial extraction attempts failed, Othram scientists recovered usable DNA from formalin-fixed tissue samples preserved from the 1980 autopsy and used forensic-grade genome sequencing to build a genealogical profile. By March 2021, genealogical research had narrowed the search to six people believed to be the victim's parents, siblings, or aunts and uncles, and DNA swabs from biological relatives confirmed her identity. On November 9, 2021, Sheriff Clint McRae announced that Walker County Jane Doe was Sherri Ann Jarvis, a 14-year-old from Stillwater, Minnesota, working alongside the FBI's Houston field office, the Texas Rangers, and the National Center for Missing and Exploited Children.

Jarvis, born March 9, 1966, had been placed in state custody at age 13 because of chronic truancy and ran away from Minnesota shortly after her fourteenth birthday. According to her family, her last contact was a letter sent from Denver in August 1980 in which she indicated she intended to return home eventually. How she came to be in Huntsville, more than a thousand miles from home, and why she was seeking directions to the Ellis prison unit remain unanswered questions. In March 2022, an updated headstone bearing her name was placed at her grave. No arrests have been made in her murder; investigators have said her identification produced positive leads, and the Walker County Sheriff's Office asks anyone with information to call (936) 435-2400.