Get the families to marry/move in together, then while the DESIRED family is in, they will live in the house WITH the guy and his furniture.
Now for the sad part, make a room with 1x1 tiles, close it in (duh), kill him!!!

Now for the fun part... See how many times and in how many CREATIVE ways you can kill him!
Theres the drowning one, fire, boredom, ect ect.
