Right wing white man in local terror attack on white people => lone operator, psychic, copycat of Muslim terrorists; not really connected to any society defects or any bigger social group.
White man in local terror attack on non-white people => hero; a justified defense against the vast Muslim conspiracy to conquer the world.
Non-white man in local terror attack on white people => terrorist; part of the vast Muslim conspiracy to conquer the world.
Non-white man in local terror attack on non-white people => crazy dude; molded by a crazy society that is part of the vast Muslim conspiracy to conquer the world.
http://www.moonofalabama.org/2011/07/classification-of-terrorism.html