Typical. This is the story set that goes right after “It was probably a right winger” and before the story set that goes “poor innocent Muslims fear backlash”.
It indicates that the MSM has pretty much given up hope that they will find a Tea Party type to blame and are positioning their narrative so that they won’t look (much) like idiots when Achmed the Awful is finally identified and they have to admit it was a Jihadi strike.
In other words, the old MSM is starting to cut their loses.