In New York, bands of urchin-artisans took up Cornbread’s style—stick letters, tags—and made it an art form. Graffiti now adorns ... out a wall featuring the Black Panther, painted by ...

Thursday's graffiti depicted swastikas, the letters 'KKK' and appeared to include the last names of four black students, including Arthur. The previous graffiti reportedly said all 'n*****s' on ...