Replying to a whole bunch of things;
Zekewolf: Nope, never shot anyone and pray I never do. However, I do have some LEO background and know the cops will go through the house if they take you elsewhere. In my case, I'm divorced and no one would remain behind to "witness" what the cops did. Hence, I'd ask my lawyer to do that especially as he can provide an affidavit to the court of any potential legal screw-ups the cops did (like trying to pry open your safe before obtaining a warrant or copying down entries in your check book).
nug_38: When I said you could tell the cops you think you're about to hurl, I do have first hand knowledge. Most cops will take a few steps back, tell you to take a few slow deep breaths and calm down. Usually they don't want to upset you since (1)uniforms can be expensive to clean (2)they don't want to end up cleaning puke out of a gun/holster (3)the smell of it might get to them too and (4)with today's worry of diseases they'd prefer to avoid exposure to YOUR bodily fluids. Plus, it's not an unusual reaction for many people to get sick afterwards..it's a very HUMAN reaction. But it gives you time to collect your thoughts, recall what you've been taught so you can say calmly, "officer, thank you for your kindness. I do want to cooperate but I am so shaky right now, I think it's smart if I wait for my attorney before answering any questions."
Blackmind, et al: If you shoot someone justifiably, then they were an immediate and grave threat to your life. But if you shoot him and he's bleeding all over the persian rug, screaming, he's not quite a "non-threat" is he? Still concious, you have no idea how much pain he's really in -- OR what he'll do if you get close! There are techniques & tactics that can be used with 2 or more defenders however MOST people don't know how to employ those tactics. If you are alone, he's conscious, toss him a box of gauze bandages or a towel from a safe distance. Someone out cold and pumping blood like a fountain will bleed to death without aid. Again, if you're alone, you take a risk getting close should he wake up.
Note: If he just tried his best to carve me into sushi and I survived, I'm not going to take another chance be getting close to him. A guy squriming around the livingroom with a load of #8 birdshot in his thighs will get a towel or two until paramedics arrive. Legally, I don't think you have an obligation to start first aid or CPR, especially if you think a serious danger remains. Morally and ethically you have to ask yourself if this person will threaten your life and put himself in mortal peril like that, does he value his own life as much as you value yours? (Seems doubtful).
Blackmind is correct that some details escape our notice in the adrenaline rush of the event. I went to one shooting scene where the homeowner seemed calm and collected, described how the BG came in through the garage, he saw the pipe wrench held menacingly and fired twice, recalling clearly his Army training to let out a breath first. Both shots were 10-ring hits and BG was DRT in the hallway. The cop asked the man if he remembered wetting himself at which point he looked down in surprise! He hadn't even realized it while standing in the garage in 40 degree weather!
The point is, you can leave out critical details -- like that you were headed to the bathroom when it all started -- that will later become "loose threads" in your account of the incident.