Yeah, give him a few days to see if he cools down.
I have to agree that a simple revolver is going to be the best option for a novice home defense gun. However, I also have to agree that it sounds like he thinks buying a gun will make everything better. Though it might provide a sense of security, hopefully he takes the time to realize it takes much more than just buying a gun (as others have specified).
No need to repeat some of that advice but I'll tell you what I have. I carry either a Glock 19 or Kahr PM40. The Kahr is definitely not a beginners gun but a Glock isn't bad. I'd still advise a revolver but Glocks are still simple to operate, disassemble, and offer a decent level of forgiveness in the cleaning and maintenance areas. Their lack of external safety has it's ups and downs for beginning shooters, but I'm getting off topic. I do have a concealed carry permit. I shoot as often as finances allow, and I'm lucky enough to have a wide open place to go shooting. If you have no other options a range is better than not shooting, but I have the freedom to draw, move, double-tab, rapid fire, move some more, reload, etc. Something many ranges may not offer. So my CCH training, my practice, and a lot reading is where I'm at, and honestly, I know there is a lot more training I would like to take. Maybe it would be best to sit down, price a gun, price training, price a safe, price ammo per month, range fees, and anything else you can think of. That security system might look more inviting then.
As for Golfer and the kill thing. I would just change everything to 'incapacitate'. You're shooting to render that threat unable to harm you. As long as you understand your laws, shoot to incapacitate as quickly as possible. Put as many in center body mass until the threat is no longer a threat.