A video said a Professor a witness at the school was speaking to Congress (usa) & was Ridiculed lost reputation & Committed Suicide? Did he? 

A COVER UP ON THIS SCALE OF INTIMIDATION = Knowledge by Authorities & desperate - Desperate to suppress at any cost? - As threatened USA & worldwide?  

https://www.latest-ufo-sightings.net/2017/04/day-ufo-history-westall-66-melbourne-high-school-ufo-sighting.html

"MOST INTERESTING OF ALL"

200 STUDENTS & WITNESSES WERE TOLD NEVER TO SPEAK ABOUT IT.

UFO Researchers Have Died Mysteriously

http://www.educatinghumanity.com/2012/10/UFO-Researchers-Die-Mysteriously-Morris-Jessup-Edward-MacDonald.html

This is not true - Perhaps this was before The World Wide Web.

So much information is now available & Death bed Confessions....

The question remains why are governments so desperate to suppress UFO'S & Aliens...

It was an agreement called the Grenada Treaty By President Eisenhower - That literally SOLD Humanity Out!