>> the little girl was seat belted on this side as you're looking in. >> tom bevel, a bloodstain pattern analyst, was an expert witness for the prosecution. in a bronco similar to the one owned by the camms, he demonstrated for us where he believes david was wedged inside the car to get those specks of blood on the bottom of his shirt. >> what's a likely posture for the shooter? >> would've been leaned in somewhat like this in order to get the correct trajectory for her. >> now, i noticed your shooting hand is up pretty high. >> it is. >> is that an awkward shot? >> it's not necessarily awkward, but we have to go with the physical evidence. >> it is what it is. >> and the physical evidence isn't like this. >> but why so few spots? bevel said it's because most of the blowback hit the inside roof of the vehicle. like much of the other evidence, the blood spatter testimony was essentially the same as in the other two trials. what would be enormously different this time was the star witness. the jury was going to hear from charles boney himself. a huge risk for