Date: Sunday, 31-Jan-2016 00:56:42
You've seen the video, taken from what appears to be a drone. No dashcam close-ups, no audio.
LaVoy exits his truck with hands raised. A dialog ensues, and he's asked if he's armed. Yes, he says, a pistol in my left coat pocket. Okay, the say, use your right hand to pull it out and drop it. Finicum starts to do this and then hesitates. You're gonna shoot me as soon as I pull it. The reassure him, so he moves his hand again to grasp the pistol. At this point he is shot.
This theory fits what we see on the FBI video. I'm not in any position to claim this is how it went down. But it can't be disproved without the audio, which I'm sure exists.