Heidi Lynn Seeman, an 11 year old white female, was one of two daughters to Mr. and Mrs. Seeman. She had recently completed the fifth grade at Stahl Elementary and was enjoying her summer with family and friends. On Saturday, 08-04-1990, Heidi disappeared while returning home from spending the night with one of her friends. She had left the friends house on foot and was last seen walking west on Stahl Road. A massive search ensued, however, she was not located. On 08-25-1990 Heidi’s body was discovered by a land owner along a county road in a rural area outside of Wimberly, Texas in Hays County. An autopsy determined her manner of death to be homicide.
http://www.mysanantonio.com/news/local/article/20-year-cold-case-slaying-still-haunts-city-633808.php