The pilot of a small airplane was killed and two Pennsylvania State Police troopers were injured after the plane collided in midair with a state police helicopter near the Carlisle airport in Pennsylvania's Cumberland Valley on Wednesday evening, officials said. The Cessna 150 airplane crashed into the Bell 407 helicopter, which was conducting a training exercise, shortly before 7 p.m., Pennsylvania State Police Acting Commissioner Col. George Bivens told reporters at a press briefing. The Cumberland County Coroner's Office on Thursday identified the pilot of the Cessna as Dr. Paul Sokoloski, 57, of Hershey, Pennsylvania. He was the sole occupant...