Did you even read the original post, and the creds of the man writing it?
He’d make a great expert witness. Horrible advice to a shooter.
He is a moron if he thinks that a lot of glib talking at the scene is going to affect the investigation. No one gets it right immediately after a shooting. And, every mistake the shooter makes on chronology, sounds, movements, statements, appearances, etc. is a lie when it comes to the cold light of day a week or two later
And, half the stuff a prosecutor would ever have to prove, and some of it difficult to prove, is admitted by following that idiot’s bad advice.
Trust me on this. The police do not assume guilt when a person is smart enough to hold back his statement until he has legal advice.