A cellphone camera video made by the wife of Keith L. Scott before he was fatally shot by police here shows the moments before and after the incident, including the wife’s pleas to her husband to get out of his truck, and her pleas to the police not to shoot him. But the video, which was given to the Times by attorneys for the family Friday, does not include a view of the shooting itself. Nor does it answer the crucial question of whether Mr. Scott had a gun, as the police have maintained.