It looks superficial, not a wound produced by someone's head being repeatedly bashed against concrete.
You are wrong.
In 30 plus years of treating wounds of all types, I see wounds on ZMan that could be caused by the head being bashed against concrete. If someone sucker-punched me and commenced to dribble my cranium on the sidewalk, I would put hollowpoints center of mass.
I am anxious to see the postmortum report which hopefully will describe the angle of entry of the bullet and distance of the shooter, etc.
I bet the jury will be interested in that as well.