Following the bombing at the Boston Marathon last year, Glenn Beck went on a personal crusade to prove that the Obama administration was engaged in a massive cover-up of the role that an al Qaeda operative played in the attack and was doing so for the benefit of the Saudi Arabian government.

Beck infamously gave the US government three days to come clean about the cover-up before he exposed it on his network. When those three days passed, Beck launched into a full-scale campaign to prove that Abdul Rahman Ali Alharbi, who was injured in the bombing, was actually an al Qaeda “control agent” and the “money man” who financed the operation and recruited the Tsarnaev brothers to carry it out.

Beck’s theory rested on the fact that Alharbi had once been considered a “person of interest” during the investigation but was quickly cleared. Beck’s network received information during the investigation that Alharbi “was set to be deported under section 212 3B” for “terrorist activities” and it was upon that piece of information that Beck built his entire campaign, as he spent days hammering away, challenging everyone to disprove his theory and warning that they would only discredit themselves if they tried to do so.

Eventually, Beck’s crusade came to a grinding halt when he brought a former INS special agent onto his program to bolster his theory but, instead, watched as Bob Trent blew a hole right through it by pointing out that the 212 3B designation and Beck’s entire timeline “doesn’t make sense.”

After that, Beck more or less abandoned the issue, though he continued to personally believe in his original conspiracy and mention it from time to time.

And now, nearly one year later, Beck and his company are being sued by Alharbi for defamation and slander: