OKLAHOMA CITY (KFOR) — New court documents detail 47-year-old Duncan Foster allegedly firing a gun at two teens while at a stoplight at Portland and the Northwest Expressway on September 18. Duncan Foster. Photo courtesy Oklahoma County Detention Center. Oklahoma City Police say the girls were leaving Stars and Stripes Park. One of them was hit in the leg and hand, and the other was shot in her arm. Olyvia Russell was at the park that Wednesday evening. Family pleads for answers on hit-and-run that left loved one dead "It was me watching somebody else trying to kill all these kids," Russell said. Russell tells News 4 what she saw that evening. "He starts driving around in circles around the entire park. he goes around again and he goes over the wires at the park and he starts literally gunning for them through the park. It was very obvious," Russell said. It's unclear if the attack was random, but another witness told officers Foster threw a bottle of liquor through his front passenger window as he was trying to run people over in the park. Russell says she saw Foster driving erratically, and says he looked angry. Russell also says she's a regular at Stars and Stripes, taking her daughter there often, but what she saw has left her scarred. "I'll never go back to that playground again," says Russell.