On the surface, Friday's horrific beheading at an Oklahoma food processing plant appeared to center around a simple workplace dispute.
However, upon further investigation of the suspect – 30-year-old Alton Alexander Nolen – red flags have arisen.
Was the murder an isolated incident? Or terrorism on American soil.
Watch the above video as CNN's Martin Savidge examines a story that has brought up questions regarding the potential of a "lone wolf" inspired by Islamic extremism.
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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