Western terror suspects already being known to authorities has become so pervasive that I coined the term "known wolf" back in October 2014 to characterize the phenomenon.
This will be the sixth "known wolf" terror attack targeting..."
https://counterjihadreport.com/2016/07/26/known-wolf-alert-isis-suspect-in-normandy-priests-killing-already-known-to-french-authorities/
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