Every year the local gun club gets together with the DA, prosecuting and defense attorneys, firearms experts and others and holds a public symposium on the use of lethal force. These events are well attended.
Law enforcement and defense attorneys have a slightly different point of view when it comes to what the shooter should say after the incident. One thing the defense attorney said that the police didn't refute was that there are many people in jail because they spoke without the presence of an attorney.
Since you're innocent until proven guilty, best to say nothing or as little as possible.