The lighting in this photo was towards the side of him, not directly in front of him to where it cast a shadow on the other side of hid face, forming a triangle under his eye. There was no fill light used for this because I wanted to be able to have the shadow there to form the triangle. This lighting also made the background look light grey because the light was to the side but in front.
Great shot. No fill can be the right choice as it is here.