Authorities in Burlington County say the last known person to have seen Sheila Maguire alive before she was killed inside her Florence home is believed to have been found dead Friday in Pennsylvania, perhaps from a suicide.

A body preliminarily identified as 53-year-old Peter Lestician, who had been in a relationship with Maguire, was discovered in a vehicle in Cooper Township, Clearfield County, about an hour north of Altoona.

Pennsylvania state troopers were called to the scene Friday afternoon and they discovered the body of a man in the front seat of a vehicle, which was locked. Lestician’s New Jersey driver’s license was reportedly found in the vehicle.

54-year-old Sheila Maguire was found dead late Monday afternoon after family members requested a wellness check at her home because they had been unable to reach her for a few days.

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Maguire and Lestician lived together at the home in the 200 block of Birch Hollow Drive.

Lestician, a teacher at South Brunswick High School, had not made contact with family members since August 26.

The Burlington County Prosecutor's Office says their investigation into Maguire’s homicide will continue.

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