Details of Disappearance
McGuyer was last seen on Roxton Street in Dorchester, Massachusetts on October 7, 2007. She left her eleven-year-old son behind and has never been heard from again. Her mother reported her missing ten days later. Her son and other family membners stated they thought she would have contacted them if she could have.
At the time of her disappearance, McGuyer was living with her boyfriend, David Pena. He stated he was involved in a physical altercation with her inside their apartment, she stabbed him in the shoulder with scissors, and he left and went to his mother's house. When he returned a few days later, he said, McGuyer was gone and all her belongings had been moved out.
In 2017, authorities located a witness who said that in the days after Pena and McGuyer's fight, he helped Pena moved something wrapped in carpeting and a blanket. They disposed of the bundle in a wooded area, somewhere in the vicinity of Boston. During the moving, the witness said he recognized the object he was helping move as McGuyer's body.
In January 2023, Pena was arrested in Florida and charged with McGuyer's murder and with an unrelated count of cocaine trafficking. He is awaiting trial.
McGuyer's remains have never been found. Foul play is suspected in her case due to the circumstances involved.