It is with extreme thanks to Chris Baird of Arizona Wrecks.com that we have scanned copies of FBI records from the investigation of Flight 23 (known as Trip 23 in those days).
Please follow this link for his summary of the very lengthy and dry findings.
http://arizonawrecks.com/wrecksfromtonymireles/boeing247nc13304page2.html
Chris has been instrumental in obtaining these documents that persisting with archivists and officials to get them.
It would seem that the FBI could only come up with possible scenarios as to who or why the Boeing 247 was brought down out of the sky to an untimely end. Much of the focus centered around passenger Emil Smith and his associations at the time.
The 1930s were quite a different era and it is plausible that any number of criminal or illegal persons and/or activities could have brought the plane down.
