Beheaded in Oklahoma: a workplace dispute, or the act of a "lone wolf" terrorist?

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.