The police chief in Coraopolis has resigned after 14 years on the job. Chief Alan DeRusso’s resignation was unanimously accepted by the borough council last night. Back in August, DeRusso was accused of running a red light at University Boulevard and Thorn Run Road in Moon Township. He was driving an unmarked police car and crashed into a vehicle. Both DeRusso and the other driver suffered severe injuries in the crash. Investigators say the chief was driving 80 miles per hour, and they found no evidence that he was responding to an emergency. On Friday, DeRusso pleaded guilty to reckless endangerment and reckless driving. He will be sentenced in January.