RICO or Racketeering Influenced Criminal Organization, is a collection of statutes that can be used to prosecute organized crime -- like the Mafia -- but is not limited to those kinds of groups.
Using RICO instead of domestic terrorism would allow prosecute of not just the shooter, but those who conspired with him to commit murder, those who raised money in support of the RICO activities, In short, it is not just Roeder, but Randall Terry, any and all of the other leaders and members of anti-abortion groups which have either directly or indirectly called for violence against abortion providers or their families. conceivably, the Bill O'Reillys or Sean Hannitys, Glenn Beck and countless other small-time talk radio hosts or newsletter writers, bloggers, documentary film producers, etc., whose incendiary rhetoric would incite violence from their followers.
She quotes lots of sections of the law to explain how it might work.
Sounds good to me.
UPDATE: That link is busted. The post has disappeared. I wonder why.