Nice try. it falls under the purview of the NTSB. The fact that it had a crime attached to it "could" possibly involve the Feeb's but, when was the last time you heard about a feeb invesitgation of a truck hijacking??? they are interstate commerce too. But, the CRIME has to extend across the border for it to be a federal offense. Learned that at the Police Academy. For the Feeb's to move in on a case means that there is "something of interest" there.
There is also the interesting little factoid about Greyhound stopping ALL national bus movement. The news radio here in Minneapolis is now reporting that it was a croatation passport. Say what you will bunkie, but, I have worked with the feeb's before, this is being held close to the vest for a reason.
I don't want to incite anymore concern that is prudent, but to summarily dismiss events without giving them due diligence consideration is simply stupid.
Semper Fi