MAMARONECK, N.Y. (CBS 2/WCBS 880) — Crime scene investigators spent many hours Monday gathering evidence inside the home of an apparent Mamraoneck murder victim.

Authorities were seeking to build a case against 54-year-old Reginald Powell, seen as the prime suspect in the death of Jennifer Katz, a 49-year-old divorced mother of two.

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Police said Powell, who has spent 22 years in prison for a 1982 homicide until his parole in 2008, was stopped by NYPD officers in Harlem for a traffic violation, CBS 2’s Tony Aiello reported.

Powell was found to be driving a vehicle registered to Katz and in possession of some of her jewelry. Authorities said Powell tried to get away on foot, but was captured a few blocks away.

WCBS 880 Reporter Catherine Cioffi gets details of the murder and a person in question from Mamaroneck Police

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Mamaroneck police were notified and found Katz’s body when they rushed to her home. A police source told CBS 2 that Katz had dated Powell’s brother for a time after her divorce.

Powell was being held by police Monday night on burglary charges .

At the time of her death, Katz’s two daughters were in North Carolina spending the holiday with their father.

“I’m devastated for her children. I have two children, one goes to the high school with her daughter, and I don’t know how you recover from a tragedy like this. So we’ll pray for them,” neighbor Alice Horowitz said.

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Police haven’t said how or when Katz was killed, but an autopsy has been completed. Those results have not yet been made public.

Tony Aiello