It took investigators two decades to solve the cold-case murder of a mother attacked inside her Montgomery County, Maryland, home in May 2001.

Family members of the murder victim, Leslie Preer, shouted, “Yes,” inside the courtroom Thursday as the 30-year sentence was handed down.

A judge sentenced now 45-year-old Eugene Gligor to 30 years in prison with all but 22 suspended. He will serve five years of supervised probation after his release from prison.

The sentence closes out a cold case that went unsolved for 23 years until forensic genetic genealogy testing linked Gligor to the crime scene inside the Chevy Chase house where the Preers lived.

Killer says, ‘ Leslie always was very kind to me’

Gligor had dated Preer’s daughter Lauren when she was a teenager. The two broke up years be

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