Police have charged a D.C. man in connection with the 2005 slaying of a National Institutes of Health worker who was found stabbed to death inside his Chillum-area home, saying DNA linked the suspect to the crime.

Marcus Levi Brown, 41, was arrested Tuesday and charged with second-degree murder in the 2005 slaying of 49-year-old Reginald Taborn, police said. Taborn, who worked for the National Institutes of Health, was found stabbed to death inside his home in the 3300 block of Buchanan Street on May 17 of that year.

In a blog post, Prince George's County police said DNA collected from items found near Taborn helped link Brown to the slaying. They said the DNA from those items matched a sample of Brown’s genetic material in the FBI’s convicted offender DNA database.

It remains unclear what prompted the slaying, but police said Brown and Taborn were acquaintances.