Homegrown Terror: Attack Planned by a Lone Wolf?

Parents describe son, Christopher Lee Parnell, as someone who is not a terrorist.
1:39 | 01/16/15

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Transcript for Homegrown Terror: Attack Planned by a Lone Wolf?
Here at home, we're learning more at this hour about the young man from Ohio under arrest. On his way to the capitol with deadly plans. Investigators believe it was much worse. Here's Martha Raddatz. Reporter: Today, from his hometown of Cincinnati, to capitol hill, there is nothing but shock. How did this 20 year-old, so-called "Mama's boy" go from this -- the clean-cut wrestler, the homebody who loved his cat, to this -- a man the FBI accuses of preparing to bomb the capitol in support of Isis and Al Qaeda terror groups? He's not a terrorist and I don't appreciate him being painted as a terrorist. Reporter: But FBI officials, which acknowledged they ran a sting on Christopher Cornell, says his plan involved not only detonating bombs at the capitol, but then mowing down members of congress with assault rifles and 600 rounds of ammunition he purchased at a gun store moments before his arrest. Cornell's parents said today the boy was just trying to figure himself out, described as a quiet student who converted to Islam last summer. That's when he first appeared on FBI radar, after, they say, he pledged his support to Isis on social media, under an assumed name. Martha is with us live. Do we know if he was acting alone? No link yet, they think he was the classic lone wolf, but the FBI does believe he was trying to communicate with radicals overseas. But no one overseas apparently

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