When Gregg Bernstein attended MassArt in the early ’90s, he was tagging walls with spray-paint and running from the Boston Police. These days, the cops call Bernstein with ideas of where his next mural should go.

When Gregg Bernstein attended MassArt in the early ’90s, he was tagging walls with spray-paint and running from the Boston Police. These days, the cops call Bernstein with ideas of where his next mural should go.