“This does not fit the typical terror profile for an attack”
We need to throw away this idea that there is a “profile” for terror attacks. They change their tactic constantly, and in the case of individual jihadis, they are as varied as the terrorists themselves. The Boston Marathon bombers did not engage in suicide attacks...neither did the Paris attackers, except for the one failed bomb at the stadium. The bomb in New York last week didn’t fit that profile, nor did the San Bernardino attack - they all tried to get away. Let’s get rid of this idea that something has to fit a pattern to call it terrorism - jihadis are fighting a war of demoralization to conquest. The unexpected is their friend.
I don’t disagree, but that is the general profile even though not every act fits. At this point all we have is speculation and a few accepted facts.