ISIS Tries to Claim OSU Attack as Own

Sources familiar tell ABC News he bought the knife shortly before the attack.
2:02 | 11/29/16

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Transcript for ISIS Tries to Claim OSU Attack as Own
We also do have new reporting tonight of that horrific attack at Ohio state. The student who crashed into a crowd, and then went on a rampage with a butcher's knife. Tonight, ISIS is now calling them one of their, quote, soldiers. But this evening, the video of the attacker just a few months ago, celebrating his graduation here in America. So, what or who got to him? Here's ABC's chief investigative correspondent Brian Ross. Reporter: ISIS tonight is claiming the Ohio state attack was carried out by what it called one of its soldiers of the islamic state. Abdul razak artan. Reporter: Just five months ago, Abdul razak Ali artan was graduating with honors from community college in Ohio. It was a jubilant young man. For this to happen, four, pooif months later, I would be curious about what the circumstances were. Reporter: 14 young people linked to terrorist attacks in the U.S. In his statement posted on Facebook before the attack in which he was shot dead, artan wrote, "If you want us muslims to stop carrying out lone wolf attacks, then make peace." Authorities say artan was not known to the FBI, and as agents now seek to learn more, victims are beginning the healing process. I could tell he was very angry. Reporter: 28-year old army vet Anderson Payne served two tours in Iraq unscathed, only to be injured on an American college campus. He turned and went to swing the knife at me, and I reached up with my left hand and I grabbed the blade so that it couldn't hit me and that gave me enough time to duck under his arm and make my way back into the building to get away from him. All right, so, let's get right to Brian Ross tonight, because ISIS is now claiming this young man was one of their soldiers, is there any evidence to back this up? Reporter: So far, David, there's not. That's what the FBI is doing now. Going through his phone records, his computer, looking to see who he might have been in contact with. David? Brian Ross, thank you. At this hour, president-elect Donald Trump is

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