Terrorism - A lost meaning?

[Kekeb]

I'm sure that most have you have heard about the event at Virginia Tech, and I'm wondering about the meaning of terrorism. Not once in the media have I heard them call the killer a terrorist. Terrorism is described as; a term used to describe violence or other harmful acts committed (or threatened) against civilians by groups or persons for political or ideological goals. So therefor a terrorist is one that acts out terrorism. How come I haven't heard them calling him a terrorist? He clearly was violent, and killed/injured more than 40 people. Which were all civilians. Where? Where has the meaning of terrorism gone? What are your opinions.