An even bigger question is how did the bullets (plural) go through the father's chest, exit and hit the second perp, without causing life-threatening injuries?
I don't really care if the injuries to the second perp were life threatening, in fact I hope they were, but how did the victim of the invasion and shooting escape harm?
It is possible for a bullet to just go under the skin on the surface of the chest and exit without ever entering the chest cavity.
>>>An even bigger question is how did the bullets (plural) go through the father’s chest, exit and hit the second perp, without causing life-threatening injuries?<<<
Ask John McClane.