B.C. in the case of Nathaniel Mary Quinn stands for “Before Charles.” You see, the artist had been teaching for a decade while making paintings afterhours in his Bed-Stuy apartment/studio. With hopes of one day becoming an artist-in-residence at The Studio Museum in Harlem, he seemed content with the life he and his wife, Donna, were nurturing. This was a long way from the infamous Robert Taylor Homes in Chicago where, at age 15, his young life was shattered after being abandoned by his father and three older brothers two months following his mother’s passing.