Knowing how to deal with what comes in a shooting aftermath – especially if your the armed citizen that fired a handgun, I can think of no better instructor than Massad Ayoob.
According to Wikipedia Massad Ayoob is an internationally known firearms and self-defense instructor. He has taught police techniques and civilian self-defense to both law enforcement officers and private citizens since 1974.
He was the director of the Lethal Force Institute (LFI) in Concord, New Hampshire from 1981 to 2009. Ayoob now directs the Massad Ayoob Group (MAG).
More than that bio Mr. Ayoob writes some of the best firearm books on the subject of the legal aftermath of a self defense shooting. I widely quote his work in my classes, and recommend his books courses and videos to my students.
I like to say I can teach anyone to shoot well, teaching the fundamentals of shooting is easy. It is the teaching of when to shoot and how to shoot when people are shooting back is what is hard. Special concern needs to be given to what happens AFTER a shooting. Dealing with the shooting aftermath is pretty important in its own right. After all you don’t want to go to jail for saving a life – not do you want to deal with grief, guilt or other emotional issues for it either.