What was the significance of lone wolf in the frontier

There is no perfect profile of a terrorist. This is one of the main findings in the growing body of literature around terrorism.
Terrorists and those radicalised towards extremist ideologies come in all shapes and sizes. Yet, one of the key features that has appeared to distinguish terrorists from mass murderers is that they have been motivated more clearly by an ideology than by personal reasons. Increasingly, this line is becoming harder to draw.