Problem is that the Obama administration has been dead set on NOT using the word "terrorism" and ignoring any possibility that these two guys may have had help or that they may have been trained outside the country. That's their narrative and has been since they lost their hopes that the bomber may have been a Tea Party Terrorist. Since identifying these two guys the term "terrorism" has been abandoned by these folks.
Obama made sure the charges were filed BEFORE all the investigations were concluded.