I think the video here and OP should add more info, maybe a link to original. Don't get me wrong this video is not bad but there is certainly more to the story from what I have read and heard. I know that is not what this video of the incident is about but the original video description stated the shooter was shooting through them at two turkeys.
The guys that got shot, where shot by another from their group (brother of one actually) that was obviously not following safety rules, and also must be very stealthy.