Interesting article on this by Ed Lovette in the Febuary issue of Combat Handguns. (From the author's own research.)
!) Location--vast majority happen in the victims home or place of business.
2) Lighting Conditions--Victim usually has the chance to get the lights on.
3) Distance--0-10 feet. Most between 6-10 feet.
4) Duration---actual shooting was over in seconds or a fraction of seconds.
5) Physical contact rarely involved but when it did was exceptionally violent.
6) Number of shots fired was often one but an avjerage of three.
7) Movement--movement was usually to retrieve the pistol and then to confirm the problem.
There was no "pieing" or searching, no moving while shooting or lateral movement to avoid gunfire.
8) Use of security equipment ( OC spray, knife, flashlight etc)..NONE!!!
9) Use of Cover--Almost nonexistant.
10) Firing positions---Shots fired by the Armed Citizen (AC) were most frequently from the standing position, several were on their back in bed, only one fired using the bed as cover.
11) Type of Weapon Used.. AC overwelmingly used a .38 revolver.
12) Response of Bad Guy When Shot---He most often stopped fighting and ran off, closely followed by stopping fighting and falling down. When the AC fired a contact shot into the bad guys torso/neck the fight was usually over very quickly.
13) Verbal Exchange Between AC abd Bad Guy---Almost always.
14) Training by AC---Overwelmingly none, followed by a small number who had taken a CCW course and a very small amount who had fired a handgun while in the military.