COLORADO SPRINGS, Colo. (CBS4)– The reward is growing in a 30-year-old murder case.

In 1987, 20-year-old Army Specialist Darlene Krashoc was killed in Colorado Springs. Her killer has never been found.

Darlene Krashoc (credit: Colorado Springs Police)

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Now investigators are using state-of-the-art technology to find her killer.

(credit: Colorado Springs Police)

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Investigators have released an artist’s rendering of what the suspect looked like 30 years ago. Another rendering shows what the suspect may look like now.

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The reward has grown to $10,000 in the murder of Krashoc.