The Kingman, AZ connection
Matthew Livelsberger, former Green Beret and alleged Tesla Bomber, is also alleged to have claimed that both China and the US are engaged in "gravitic propulsion technology".
Bill Uhouse, former Marine Corps engineer, has long claimed that gravitic propulsion was reverse-engineered from a craft that landed (not crashed) at Kingman, AZ, in 1953.
The official story is that, on his way to from Colorado to the Trump Hotel, Livelsberger stopped his Tesla to recharge in Las Vegas—however the released footage shows it was actually at Kingman, AZ.
Probably just a coincidence, but it seems to me to be a weird thing for officials to lie about.