A teenage boy has been arrested after he allegedly struck and killed a woman and injured her fiancé last month while driving to school in Forsyth County, authorities said.

The 17-year-old driver turned himself in Friday and is facing charges of second-degree homicide by vehicle, serious injury by vehicle and improper turn, according to the Forsyth Sheriff’s Office.

He allegedly hit the Utah couple from behind around 10 a.m. Sept. 20 as they were walking on the sidewalk on Majors Road near Ronald Reagan Boulevard, the sheriff’s office said.

Leslie Schwendiman died from her injuries after the crash, deputies said, while her fiancé, Steve Olsen, was taken to the hospital and is expected to recover.

“The couple were in town for a wedding,” the sheriff’s office said.

According to authorities, the teen was traveling north on Ronald Reagan Boulevard in a 2012 Acura MDX while heading to Denmark High School, about 3 miles away. He tried to turn left onto Majors Road but “was not able to make the turn safely, likely due to speed,” deputies said, and drove onto the sidewalk.

The teen’s name was not released.

— Please return to The Atlanta Journal-Constitution for updates.

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