Pull their teeth out and bury them somewhere else. Just incase the fire doesn't get hot enough to burn them. Remember to wear a hat and gloves, stops hairs and fingerprints spreading, and also buy some really well common clothes, so if they do find any fibers they can't directly assotiate it with you. Also buy a pair of shoes a fair few sizes bigger/smaller, if they find foot prints you can say they ain't yours because you have a different size. If you can, buy a really cheap car from an auction. Pay with money and nobody asks questions And if you decide to keep the cars, buy a second hand pair of tyres if they find any car tyre tracks, you can burn the other set and fit the second hand ones easy. If you are entering his home, remember to go back and wipe down everything you've touched, and retrace your footsteps. Other than that I can't really think of much else... Happy Killing.