Online sleuths think they have uncovered missing retired Air Force general William Neil McCasland’s anonymous social media account — which claimed another general was murdered for his dealings with nuclear material. McCasland, 68, went missing from his Albuquerque, NM, home on Feb. 27 — which is the same day that the person behind a conspicuously credentialed X account centered on spacecraft and advanced science made their last post. The account @tmbspaceships claims to be run by a “retired 38-year active duty” United States Air Force with a PhD in engineering — listing the Air Force Institute of Technology (AFIT), the...