Police arrested a 55-year-old suspect on a charge of murder Monday in the slaying of Betty Williams, who was found strangled in a suitcase at about 12:15 a.m. Dec. 22.
Police did not say whether the suspect was the same man seen in a surveillance video wheeling the suitcase down a darkened street.
They didn't say what relationship the suspect might have had with the 28-year-old Bronx victim.
Police say a passer-by rummaging through the trash outside the building on East 114th Street found the suitcase and called 911.
The building is about a block away from Rao's Restaurant, a notable eatery in the neighborhood.