"Why isn't shooting 16 people in a nightclub in itself a sign of terrorism?"
This ties somewhat into the problem of giving something too loose of a definition, so that it could be defined as whatever the speaker wants it to be and thus loses the true gravity of its meaning, as has been done over the last several years with terms like "Bullying" and "Obesity."
I think in order for it to be considered an act of terrorism, there would need to be a clear ideological motive behind the act.
For instance, I would not consider Jared Loughner's massacre or the Sandy Hook massacre, horrible though they both were, to be acts of terrorism, on the grounds that each was more of a case of an incredibly disturbed individual who just snapped one day and started shooting, with no real known ideological motive. Even though some such as the DUmmies tried to classify Loughner's massacre as an act of political/ "Right wing" terrorism due to Gabrielle Giffords being targeted, that doesn't work due to the facts that 1) Loughner had been known to be an ultra- liberal motivated more by a psychotic obsession with Giffords than an actual political vendetta, 2) Giffords was a "Blue dog" Democrat who held liberal positions on some issues and conservative positions on other issues and wasn't outspoken enough on any of them to really make a target of herself, and 3) one of the people killed in his massacre was a Bush- appointed conservative judge. If the only thing driving the massacre is sheer madness or a personal vendetta, I wouldn't call it an act of terrorism.
We don't know much about the Cincinnati shooting yet, so I'd say don't call it an act of terrorism until we learn more of the circumstances behind it.
" There are Christian terrorists, political terrorists, and people who are just general haters."
Notice how the DUmmy makes no reference to ecoterrorists. Then again, that's not surprising, since ecoterrorists like Rodney Coronado (Who spent some time on the FBI's 10 Most Wanted list) and the Unabomber are hailed by uber- leftists like the DUmmies as wonderful heroes whose actions should be encouraged.
Umm, yeah lock up all gang bangers (white and black and Hispanic) as terrorists. I have no problem with this.
I'd support that too.