Burlington, Vt. ? The body of a University of Vermont student was found Friday along a rural road, and police said they were questioning a man who lent her his cell phone on the night she vanished nearly a week ago.

Michelle Gardner-Quinn’s body was discovered near a popular swimming spot 13 miles east of Burlington, Police Chief Thomas Tremblay said.

The 21-year-old senior had become separated from her friends Oct. 7 when she borrowed Brian Rooney’s phone to call them as she walked up heavily traveled Main Street, which runs between downtown and the campus.

Rooney, 36, of Richmond, has been the focus of the investigation since he was recorded on a jewelry store surveillance camera with her about 2:30 a.m., Tremblay said. He has not been charged in Gardner-Quinn’s case, Tremblay said.

Tremblay’s investigation led to Rooney’s arrest on unrelated charges of sex abuse in two other Vermont counties.