tom fassbender: it's a game changer.ff that we weren't really aware of, like teresa was shot in the garage and had died there. andrea canning (voiceover): and after speaking with dassey, fassbender had his team return to the avery property once more, and they found this in his garage-- a bullet fragment. andrea canning: and that was missed the first time around? well, i guess they could say it was missed. but you're talking about a bullet fragment, a 22 bullet fragment. it looks like a piece of dirt possibly. it was tested? it was tested, yes. teresa's dna was on that bullet, and the bullet was shot from steven's rifle, or the one above his bed. andrea canning: do you now believe that teresa was shot in that garage? yes. andrea canning (voiceover): one strange thing, though-- when they searched the garage for blood, they never found a drop. how could you clean up all that blood? well, he did it to the best of his ability, i guess. bleach, paint thinner, that cleans up blood. andrea canning (voiceover): teresa's friend, k

tom fassbender: they made him look like he was just a nice person. what's happening is wrong.