POTUS NASA tweet something to do with possible whistleblower deaths?

https://www.dailymail.co.uk/news/article-2905123/Pilot-killed-small-plane-crash-NASA-scientist.html

Alberto Behar, Robotics expert NASA at the JPL.

died instantly when his single-engine plane nosedived shortly after takeoff Friday from Van Nuys Airport He worked on two Mars missions and spent years researching how robots work in harsh environments like volcanoes and underwater As part of the NASA team exploring Mars with the Curiosity rover, Behar was responsible for a device that detected hydrogen on the planet's surface as the rover moved.

47-year old NASA Scientist Alberto Behar helped to prove that there had once been water on Mars according to the sad Daily Mail story published to announce his recent death in a plane crash that happened on Friday in LA, California. While plane crashes do happen and scientists do die, Behar's name has now been added to a very long list of scientists and astronomers who have met their untimely ends prematurely, leading us to ask, did Behar know something that 'they' don't want the rest of society to find out?