1. Dead men tell no tales.
2. Make sure the body is found inside your house (your state’s laws may vary).
3. Say either nothing or, “I was in fear for my life and had no other choice.” But better just to shut up: see video on youtube on why you should NEVER talk to the police.
Seen people talk their way into manslaughter for this exact situation.
If you live in a Democrat-controlled area, they’ll be looking to convict you trying to defend yourself. See Kyle Rittenhouse case or St. Trayvon or...
There’s a better justification for killing all such people.
The dead cannot commit yet another crime.