csmonitor: There is so far no evidence to suggest that Alton Nolen, the man who is accused of beheading a coworker in Moore, Okla., Friday, has any formal connection with terror groups.

Yet there is also little doubt that Mr. Nolen was deeply sympathetic toward extremist Muslim groups, posting rambling Islamist invectives, photos of Osama bin Laden, and an image of a decapitation to his Facebook page.

So was Friday’s incident the act of a lone wolf Muslim terrorist? Or was it the act of an angry employee mimicking what he saw online? The answer could lie in a gray area between these two sets of facts and raise questions about what terrorism actually is.

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