A report of an armed man at the Brewster train station on Sunday turned out to be unfounded.  Putnam County Sheriff's Deputies responded to the Metro North station in response to a 911 call reporting an intoxicated male pointing a pistol at people on the platform.  Deputies, Brewster Police and New York State Troopers secured the platform and searched the surrounding area, but could not locate anyone matching the description of the suspect.  MTA officers interviewed potential witnesses, but an investigation revealed no evidence of an armed man in the area.