My Grandmother's Shotgun Shooting

My mom opened the door to my grandparents room and what she saw made her drop the phone right on the floor. The window was completely open and there was a large man with one leg over the window sill and one leg still outside. My mother terrified with her hand shaking fired the shotgun and hit him in the shoulder. Blood was everywhere around the window. She picked the phone back up now sobbing telling her coach to call the police to her house. When she looked back she saw the man running clutching his shoulder bleeding out all over their yard running back to the woods behind their property. Keep in mind he had just been shot in the shoulder with a shotgun. It's not like it was