 Witnesses say the attacker was a black male in dark clothing. Police say a suspect has not been arrested, but they do not believe there to be any threat to the public. Police are investigating after a body was found in the Arkansas River. Sand Springs police say the body was found by a fisherman Saturday night in the Arkansas River near State Highway 97. Police say that based on the condition of the body, they believe it has been in the water for a while. Officers say the investigation into the identity and potential cause of death is ongoing.