There are numerous questions about this, and connections to the FBI and Bill Clinton. For instance, there is considerable evidence that the building would not have collapsed without explosives wrapped around the pillars in the basement—an inside job. And Timothy McVeigh had connections with Muslim terrorists, but was not a conservative.
But Bill & Hill successfully made out that this was part of a “Right Wing Conspiracy.”
Curiously, the authorities buried all the evidence.
Probably, too, there was a connection with the Waco killings, another Clinton killing that was blamed on the Vast Right Wing Conspirators. There were numerous discrepancies there, too, and the Clintons wanted to take attention away from them with another mass killing.
There were thousands of threads on these subjects back in the Clinton days.
2/14/08 Hillary Ordered The Final Massacre At Waco
http://rense.com/general80/hillms.htm
Yes, I know. The source is The Spotlight. But read it anyway.