McManus was struck and killed around 6:30 Thursday evening on Route 1 south of Route 1401, Deerfield Road.
Molnar said the Ruther Glen teenager was in the right lane when she was hit by a 2004 Pontiac Grand Prix.
The driver who hit McManus was not injured, Molnar said.
McManus’ boyfriend says she had just left his home to go on a walk when the accident occurred. Robert Kahley says his girlfriend was three months pregnant and the two were excited about becoming parents.
“I could talk to her about anything,” Kahley says. “She was my rock.”
Kahley says he began to worry and went looking for McManus shortly after 6:30 p.m., Thursday. He said police could offer little information about McManus’ condition as paramedics worked to save her life.
McManus died while being flown by med-flight to VCU Medical Center.
“I got to see her one final time and I held her hand and I told her how much I loved her,” Kahley says.
McManus was pursuing her GED and enjoyed being with family, including her young nephews and nieces.
Police say while the investigation is ongoing, they do not believe the 21-year old female driver who struck McManus was negligent.