Ok folks let's slow down for a minute and use some logic here.
Why would cops rolls on the home of a innocent family? Could it be an incorrect address?
Why would cops shoot a supposedly innocent man 5 dozen times and make absolutely no attempt to conceal it? Could it be the husband also made a mistake? Based on the wife's statements they family mistook the SWAT team for home invaders?
Is an ex-Marine likely to have at least one firearm in the house and be fully prepared to use it if he thought the family was threatened? Yes
What do cops do when they burst into a home they believe to be occupied by one or more badguys and they are confronted with a man in possession of a firearm in the ready position?