Acts of terrorism typically rely on spectacle for a wider audience. The Oklahoma City Bombing, 9/11, and others were all spectacular acts of violence which had reverberations for generations after. OKC was the entre and 9/11 was the main dish, add in a mass shooting here and there that's your glass of wine with the steak.

Magione will not be remembered, because it didn't really have a spectacular mystique to the killing. He killed one person, but the wheels of the machine kept turning - and nothing changed. The others though? they truly shook the world.