I think it all depends on your locality. And what cops show up at your door.
They used to say here, if you shoot someone in the yard, drag them inside.
But they never said how to explain the large blood trail in the door.
You have to understand that not all cops are that 'observant'.
Frequently in many jurisdictions there is a district attorney hearing and evidence is taken.
Then they evaluate and determine what they will do.
Here, they are grossly overloaded with cases. And they all have political ambitions.
So if you don't have a lot of publicity, you may have no problem.
Oh, yeah, 'scuse me. Consult an attorney in your jurisdiction.