A Mankato man is behind bars after assaulting a Lake Crystal man over the weekend.Police were called to a North Mankato home where they found that Corey Raygor and Jasen Lynch had been involved in a physical altercation involving a shotgun.The gun was fired once and the round hit a parked car.No one was hit by the gunfire.Raygor was treated and released for injuries he suffered from the altercation.Lynch was taken into custody at the scene and charged with second-degree assault.