Inside the career a prolific New York graffiti artist
(New York Post Local News)

For the last 25 years, Robert Dyer has lived a double life. Every morning, he catches the 6 train at 7:40 a.m. to his city job at the Department of Health´s tuberculosis lab in Kip´s Bay where he preps specimens for testing. At night, he loads up his pockets with cans of spray paint and...