sean calebs, cnn, dallas. >>> in springfield michael finton is charged with trying to dead night a truckent says finton tried to blow it up with a remote control. he was arrested as he tried to push the button. agents have been tracking him for two years now, but this sting operation started way back in february. according to the fbi affidavit, an undercover agent posed as a low-level al qaeda operative and gave finton a van filled with one ton of explosives. the bombs were fake, but he didn't know that. agents arrested him yesterday after they say he parked the van outside of the federal courthouse in springfield and tried to detonate it with a cell phone. >>> a federal affidavit says finton is an ex-con who converted to islam in prison. he spoke about wanting to go abroad to train as a jihadist, but people have worked with him at a restaurant say they never saw that side of him. >> i'm very shocked to hear this about him because from what i know, this is not in his character at all. this element of what's on the news about him, this is -- i couldn't really -- i didn't know him to be th