Original shooters are probably crab food now.
“... they screwed it up and he had to be finished off in the hospital.”
We know the gunshots were to the back exiting the abdomen.
Consider, firing a shot to the back of the chest and level to the horizon would risk the bullet over penetrating and striking something down range bringing additional unwanted attention. Did the shooter attempt to fire in such a way as to ensure any overpenetrating bullets would strike the pavement nearby?