Not a wise choice. If the man is at least 250 lbs. a nine will kill him, but it will not stop him. Contrary to television, pistol shots are rarely fatal, and the victim almost *never* drops over immediately unless you have the nerves and skill to put one right between his eyes.
The most important thing if you are going to purchase a firearm is aquiring the proper mindset. First, go to blockbuster and rent the entire third season of "24." If you can get through that, order a book by Col. Jeff Cooper called "To Ride, Shoot Straight, and Speak the Truth."
Do that, and you'll at least know what "getting it" looks like.
what are you talking about? you have completely lost me with your '24' & 'getting it' statements.