A body was found in a retaining pond outside a Danbury condo complex last night.  A concerned citizen notified Danbury Police around 7 o'clock last night about a possible body submerged at the entrance of 55 Mill Plain Road.  Responding officers confirmed the report.  Members of the Danbury Police Department Dive Team and the Danbury Fire Department helped to remove the body of the adult, white male. The  state medical examiner has not yet determined the cause of death, but a preliminary investigation did not reveal apparent signs of trauma.  The Danbury Police Detective Bureau is awaiting the results of a thorough examination to determine the male's identity and cause of death.