A missing New York woman was found dead in the basement of a North Philadelphia home Sunday, eight days after she disappeared, and a man described as her boyfriend has been taken into custody.

Police officers found the remains of 50-year-old Vianela Tavera after receiving a number of complaints about a suspicious odor. Investigators said the body was so badly decomposed that they were unable to identify her right away.

Tavera, a Bronx native, was last seen on July 28, when she told family members she was going to Philadelphia to visit a man she had been dating.

On July 30, police in Fairfax, Va., spotted Tavera's 2013 Acura MDX and arrested 38-year-old Luis Negron-Martinez. The New York Post, citing police sources, reported that officers found a gun and blood in the backseat of the car.

The paper also reported that Negron-Martinez told the officers he had killed someone and then "went berserk." Authorities took him to a mental hospital and have since charged him with grand larceny and possession of a concealed weapon.

Tavera's family members confirmed to Fox 5 that Negron-Martinez was her long-distance boyfriend. The Post reported the two had been dating for about a year.

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