YONKERS, NY (PIX11) – A woman was arrested in connection to a Yonkers cold case killing dating back nearly 10 years, authorities said.

Wanda Veguilla, 40, was arrested and faces murder charges for the August 2012 death of her former girlfriend, Yonkers police said. Pamela Graddick, 26, was found dead in Yonkers about a month after she went missing from her apartment in the Bronx, according to authorities.

The victim was last seen on surveillance video the night of Aug. 11, 2012, walking past a Morris Avenue business in the Bronx on her way home from shopping with friends, according to Lohud.com. On Sept. 4, 2012, a resident reported a foul odor in the vicinity of the Sprain Brook Parkway. Officers discovered a plastic bag with Graddick’s body wrapped in a comforter.

Investigators believe she was shot once in the head. Police said Veguilla, who was living with Graddick at the time of her disappearance, had been a suspect in the case. Data recovered from Graddick’s cell phone helped dispute Veguilla’s alibi that she was away that weekend, authorities said.

Officials had showed up at Veguilla’s apartment Sunday and asked her to come into police headquarters for questioning, Lohud reported. There, she confessed to the killing.

The motive behind Graddick’s death was not disclosed. Police believe Veguilla had an accomplice and are searching another suspect.