After Rebecca Sherman is shot, Harry (Russell Tovey), a trained assassin himself, finds a bullet that puts him on the shooter's trail. He is surprised when he confronts the gunman and finds it is Sebastian (David Lim) in this scene from 'Quantico' Season 2 Episode 16, 'MKTOPAZ.' Catch up on all of Season 2 on abc.com and the ABC app. Watch all-new episodes of 'Quantico' MONDAYS 10|9c on ABC.