Mr Revhead wrote:but for instance we dont know if the round passed through the crim then hit the victim. or if it only just missed the crim. or for that matter if it was a ricochet.
All quite possible, according to the news article i watched last night the round was fired from an M4 rifle, which means it would be a 5.56x45mm round.
According to wikipedia, they are capable of penetrating up to 50cm of soft tissue, and because of it's shape, prone to yaw in soft tissue. Could quite easily have passed through the crim and changed angle, hitting the guy who died.
Obviously all of the above is speculation, and should be treated as such, I'm sure all will be revealed eventually and until then we're all pretty much in the dark. Very unfortunate outcome, sadly I suppose it's not entirely unusual considering the circumstances though.