Human remains found in a rural pasture on the fringes of Houston have been identified as those of a 17-year-old girl who disappeared in 1997.

The Harris County medical examiner's office on Friday identified the remains as those of Jessica Cain, who disappeared after dining with friends.

The remains were found March 18 after investigators dug for more than three weeks in a pasture pointed out by 56-year-old William Reece. He's already serving a 60-year sentence for kidnapping one woman.

Reece also led authorities to remains identified as those of 20-year-old college student Kelli Cox, who had been missing from Denton in North Texas since 1997.

Investigator Audrey Carter of the Harris County Institute of Forensic Sciences says the remains were identified through DNA analysis.