Have him taken care of. Wouldn't be afraid being by myself. Id fought before i went to prison(250/300lb+ linemen for ucsd etc..)and was an rbsd instructor.
The bitch who ratted on me both to the cops as well as live on tv to news reporters (& who also stole 12-14 assualt rifles and attempted to steal a car of mine and 2 bigbgold chains) was 6'4" & 420lbs... Caught a facefull of locks in socks and after a week in the hole got a pair of scissors inhis chest.
What would you expect me to do?
Fair enough, that is impressive - taking on a 6'4 man-mountain. Sounds like he got what he deserved too. Stealing 14 assault rifles is one thing but taking a man's personal possessions is another, especially when they're worth their weight in gold.
Just as a thought experiment, because you were a reality-based self-defense instructor: how would you have dealt with the situation if this 6'4" 420lb dude suddenly burst through your front door with his friend who is of similar size, and they intended on killing you? You're sat at a desk doing a bit of writing, so all you have next to you is a pen, some paper, a cup of hot coffee, a thick, hardback book; a pocket full of coins, and a vase of flowers by the window. They enter the room and approach from different sides, both have knifes in their hands.