A sheriff's office in Colorado said on Monday that it solved a cold case murder that occurred in Larkspur in 1987.

The Douglas County Sheriff's Office said on Tuesday that 30-year-old Rhonda Marie Fisher was killed by Vincent Groves , who's tied to multiple killings in Colorado throughout the 1970s and 1980s, and who died in 1996.

Douglas County Sheriff Darren Weekly said Groves and another man were long considered prime suspects, but new DNA technology was able to connect Groves to Fisher's killing through "trace" evidence — or small amounts of skin cells left at the scene of the killing and preserved at the time.

Weekly said solving a nearly 40-year-old murder through evidence collected at the time is "exceptionally rare."

Rhonda Marie Fisher is seen in an undated handout photo f

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