This subject, now history, seems more and more relevant today.
From a September 2001 Vanity Fair article by Gore Vidal (the whole article is well worth reading):
Finally, McVeigh sent me three pages of longhand notes dated April 4, 2001, a few weeks before he was first scheduled to die. It is addressed to “C.J.”(?), whose initials he has struck out.
I explain herein why I bombed the Murrah Federal Building in Oklahoma City. I explain this not for publicity, nor seeking to win an argument of right or wrong, I explain so that the record is clear as to my thinking and motivations in bombing a government installation.
I chose to bomb a Federal Building because such an action served more purposes than other options. Foremost, the bombing was a retaliatory strike: a counter-attack, for the cumulative raids (and subsequent violence and damage) that federal agents had participated in over the preceding years (including, but not limited to, Waco). From the formation of such units as the FBI’s “Hostage Rescue” and other assault teams amongst federal agencies during the 80s, culminating in the Waco incident, federal actions grew increasingly militaristic and violent, to the point where at Waco, our government—like the Chinese—was deploying tanks against its own citizens.
… For all intents and purposes, federal agents had become “soldiers” (using military training, tactics, techniques, equipment, language, dress, organization and mindset) and they were escalating their behavior. Therefore, this bombing was also meant as a pre-emptive (or pro-active) strike against those forces and their command and control centers within the federal building. When an aggressor force continually launches attacks from a particular base of operations, it is sound military strategy to take the fight to the enemy. Additionally, borrowing a page from U.S. foreign policy, I decided to send a message to a government that was becoming increasingly hostile, by bombing a government building and the government employees within that building who represent that government. Bombing the Murrah Federal Building was morally and strategically equivalent to the U.S. hitting a government building in Serbia, Iraq, or other nations. Based on observations of the policies of my own government, I viewed this action as an acceptable option. From this perspective what occurred in Oklahoma City was no different than what Americans rain on the heads of others all the time, and, subsequently, my mindset was and is one of clinical detachment. (The bombing of the Murrah Building was not personal no more than when Air Force, Army, Navy or Marine personnel bomb or launch cruise missiles against (foreign) government installations and their personnel.)
I hope this clarification amply addresses your question.
Sincerely, T.M., USP Terre Haute (In.)
In the end, McVeigh, already condemned to death, decided to take full credit for the bombing. Was he being a good professional soldier, covering up for others? Or did he, perhaps, now see himself in a historic role with his own private Harper’s Ferry, and though his ashes molder in the grave, his spirit is marching on? We may know—one day.