Breaking: The Secret Service is looking into the threat made against Barack Obama's life. As previously reported, someone shouted, "Kill him!" at a McCain/Palin event. Secret Service spokesman Malcolm Wiley says, "We investigate everything because we take all threats seriously." [Radar]
You can get your ass thrown in jail or simply under Secret Service investigation for saying you wish the President were dead, even if you "didn't reeeeeeally mean it". Same should be true of threats against Presidential candidates.
I do wonder, though, if the Secret Service would be going after this guy if not for the publicity that outburst has received today.