it doesn't really matter what your defense attorney says. Hell, it doesn't even matter what the DA or Detective says. All that matters is what a judge and jury say. And I can say with almost 100% certainty that if you walked into the house and shot the two unarmed people in the house you would be going to jail for a long long time.
And, you don't know anything about me. Don't pretend like you do. It's rude.
Even if you were legally justified in shooting the two people in the OP, you'd still spend a good chunk of time defending yourself in court. And then, you would forever be seen as the guy who had to "teach them a lesson."
If you want to go through all that just because you think you're right... Knock yourself out.