Dad's in the house

A man in a black suit sits at a table, holding a gun and a glass of beer, then points the gun forward. The scene cuts to a man in a trench coat with a skull emblem, shouting and holding a gun, then pointing it forward. The scene cuts to a classroom where a man in a white vest enters and looks at a student. The scene cuts back to the man in the trench coat, who is now shouting and pointing the gun. The scene cuts back to the classroom, where the man in the white vest is now standing in the doorway, looking at the student.