9 of 12: On August 4, 1990, 11-year-old Heidi Lynn Seeman disappeared while returning home from spending the night with one of her friends. She had left the friend's house on foot and was last seen walking west on Stahl Road. A massive search ensued, however, she was not located. 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.

Anyone with information is asked to submit a tip thru the Texas Rangers' Cold Case website. or contact authorities at the Missing Persons Watts Line: 1-800-346-3243.

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