The only part which does not fit is the fact that the perp was sanitized--no ID, no cell phone, etc.
Recall one drove an SUV into the 'pit' in North Carolina, and the press played it down as an isolated event. There have been quite a few 'isolated events'--none of which have been given jihadic attribution though they involved Muslim perpetrators.
We are still waiting for sufficient data.
So every time I go anywhere without a wallet and cell phone I'm "sanitized?"