not necessarily. i think the definition of a terrorist attack is that its motivated by some bigger picture, ideological perspective (politics, economics) and designed to make onlookers afraid.  a wacko who wants to steamroll a dozen people in the street and then get into a shootout with the cops doesnt necessarily need any ideological motivation for doing so, nor may he particularly care about instilling fear into the rest of the public. could just be his way of going out in a blaze of glory on new years eve without any bigger pictures goals in mind or any message to send.  by contrast, thats why luigi is facing terrorism charges: because that did seem to be motivated by ideology and also about sending a message.
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