This story reminds me of a story in the above mentioned series about a group of researches who appeared to have been killed by some force in Siberia. Upon further investigation, there appears to be some domes buried in the ground in Siberia.
The domes are theorized to have killed the researchers. In the show, they said an autoposy was done and some of the researchers were killed from the inside out. In other words, there was no visible trauma to their skin but their rib cage bones had been shattered.
http://www.abovetopsecret.com/forum/thread544351/pg1 https://soipost.wordpress.com/2013/12/29/what-is-the-purpose... http://www.utaot.com/2013/02/27/scientists-prove-ancient-ali...
I don't get much of an opportunity to talk about these things at work or within my family. They think I'm nuts. But this really fascinates me too.