Concealed carry isntructors adamantly recommend to shoot to kill the kids trying to crawl through the window or enter the door. Then drag them into the house. One opinion is better than two.
Umm, I've never encountered an instructor who recommended tampering with the scene like that. Not my CCW intructor, not my NRA instructor, and none of the instructors at the Front Sight 4 day defensive handgun course. If you think a forensics team wouldn't be able to tell you "dragged them inot the house", you may be in for a surprise, and in so doing you've just told the DA that you felt you had something to hide.
I think that would get YOU a ticket straight to jail.
I highly suggest that you go buy this book. It is one, if not the, best book on FL firearm laws.
What those CCW "instructors" told you is a big line of BS.
Shooting them is fine when they are crawling in. (in NC)
I seriously doubt any competent CCW instructor would advise moving the bodies. The blood trail would raise inconvenient questions with the responding officers. Planting weapons on the perps is also a bad idea.
Always better to play by the rules and avoiding situations where one might feel compelled to lie to the cops. You will be found out, and what would have been a justified shooting will land you in jail (or broke from lawyer fees).
YMMV, check the laws in your state to stay on the safe side.