"The terrorism expert said the size of the explosion indicates that it was designed to hit more than Hinrichs. He said it seems more than coincidence that this occurred on the Saturday night of a football game."
The above statement was in the article. The author of the article isn't such a hot writer, or he would have linked "terrorism expert" to Sloan's actual name. It appears that who you are talking about is one and the same with the prof being quoted. He is no long at OU - too lucrative to pass up all these gigs downplaying Muslim terrorism and exaggerating the threat from the Vast Right Wing Conspiracy.
Yes - the intervening paragraphs (such as the one bemoaning the lack of information from the FBI) between the introduction of the esteemed Doctor's name and the description of his trade obscured the link.