No charges will be brought against a driver who struck and killed a mother as she stood in the road helping her children’s school bus back onto a busy Hinckley Township road.Diane Plumlee, 54, an educator at the Akron Institute of Herzing University, died Oct. 18 shortly after being struck at the intersection of West 130th Street and Crestview Road.She was a widowed mother of two girls and a boy. Her husband of 19 years, music teacher E. Gustavo Plumlee, died in August following a heart attack. He was 46.Diane Plumlee’s two oldest children were aboard the Brunswick City Schools bus with four other middle-schoolers when the accident occurred. Her youngest child was at home.Police Chief Tim Kalavsky said Thursday that a review of the crash by Medina city prosecutors ended with no charges being filed against a Brunswick Hills man whose pickup truck struck Plumlee as she stood in the road before sunrise on West 130th Street.The school bus had turned east onto Crestview Road about 7 a.m. and stopped near the West 130th Street intersection. At some point, Plumlee told the driver, who was unfamiliar with the route, that Crestview was a dead-end street and that she would have to back the bus onto West 130th Street, a 35-mph road, police said.The bus driver cautioned Plumlee not to stand in the road to guide the bus but instead to wait for other assistance to arrive. The mother declined, Kalavsky said.The bus had yet to back out when Plumlee was struck by the Ford F-150. The driver stopped at the scene.After the accident, Plumlee’s children were taken off the bus and returned home. The three children, Ana, Antonia and Carl, are being cared for by family members.