[ Fraser glances up, then looks down again at the piece of metal in his hands as if seeing it for the first time. ]

Well, I don't want to jump to any conclusions, but it seems to be a piece of a car. From over the fuel tank, would be my guess.

[ He lifts the charred, twisted piece of wreckage for Levi to see, turning it so light shines through the bullet hole. ]

Whether this is deliberate or not depends a great deal on whether my initial assumption is correct. I think someone shot this car, and it exploded.