SAN ANTONIO -- She has been dead for more than two decades and her slaying remains unsolved.

Bexar County Sheriff's Office investigators have wondered about the identity of the woman who was killed and left inside a shed in southeast Bexar County in 1986. The case has been filed away without a name since March 1986. The body was so badly decomposed detectives were never able to identify her.

Cold case investigators recently reopened the Jane Doe case.

The only break investigators have had to go on was a confession from the convicted and so-called Railroad Killer Angel Resendez Ramirez. Several years before Resendez was executed, he confessed to killing the woman. Resendez was believed to be in the area around the same time the remains were found.

Cold case investigator Adrian Ramirez said despite the serial killer's admission, he wants to make sure that "it's this individual that he's talking about." That's why he turned to the latest technology in an effort to put a face to Jane Doe. The victim's skull was sent a lab, where her face was reconstructed. Ramirez hopes it's the reconstructive face is a close enough match for someone to recognize woman and finally close the case.

Ramirez believes the woman may be between 18 years old and 25 years old and may be from the Del Rio area.

Anyone with information on the case is urged to call 210-335-6041.