BEHIND THE MYSTERIOUS CRASH OF A HELICOPTER NEAR AREA 51 IN 1991.
Review of one of the most important behind-the-scenes event of 1991.  The helicopter crash at the area, where two pilots and three security guards from Wackenhut were killed was not at all accidental claimed Michael Riconosciuto, who said that the individuals aboard the helicopter were travelling with sensitive documents:
https://noriohayakawa.wordpress.com/2016/02/18/behind-the-mysterious-crash-of-a-helicopter-near-area-51-in-1991/