Edward "Chip" Dent shows a video surveillance image on a screen in the basement of his home on N Street NW in Georgetown. There is one functioning camera mounted high on the outside wall of Martin's Tavern at the corner of Wisconsin and N Streets NW that is aimed down N Street. (Rod Lamkey Jr./The Washington Times)

Edward "Chip" Dent shows a video surveillance image on a screen in the basement of his home on N Street NW in Georgetown. There is one functioning camera mounted high on the outside wall of Martin's Tavern at the corner of Wisconsin and N Streets NW that is aimed down N Street. (Rod Lamkey Jr./The Washington Times)