Perhaps the FBI had an informant in the bomber group - who turned out to be a triple agent and misinformed his handlers as to the time and location of the operation. Or perhaps the informant really did not know.
A brew of malevolent conspiracy and government incompetence can go a long way.
So a large truck filled with nitrate-fertilized based bomb gets in front of the ATF build, and when it goes off, it cooks off the armory inside.
McViegh is captured at a "routine traffic stop" by an astonishingly lucky state trooper. The report of a third man at the Ryder truck rental along with McVeigh and Nichols gets buried. The McVeigh connection with a Filipino Muslim group and his travels to the Philippines gets buried.
All of the surveillance video of the explosion goes "missing". Seismic records from the US Geological survey, which according to their geologists clearly indicate **two explosive events** are ignored. Those same geologists and their entire group are subsequently laid off due to "budget reductions".
Nothing to see here. Move along.
Don’t forget that a month later the building was imploded and all of the debris buried in a secured site at record speed. They hadn’t even recovered all of the bodies yet or had time to sift through the evidence.
In the end however, he finds enough contradictory evidence in her story to reject the notion of an Iraqi/al-Qaeda connection.
Personally, although I would love to see evidence of such a connection, it doesn't make sense that McVeigh went to his death proudly claiming that he and Nichols acted alone, and that Nichols has never said anything to the contrary. So this raises the goofiness level of conspiracy theorists even higher to think that two guys would willingly die/face life in jail for a lie.