I'm glad you, Kevin, are asking about this, since you have said you believe God and Christ's birth and onward is magical thinking.
I don't recall McVey's religious background or motive for the bombing, and I'll take some time today to refresh my memory. But I recall it was very purposeful with full knowledge on McVey's part that people who never harmed him personally in any way would die brutal deaths. Clearly he had magical thinking of some sort that justified his actions in his mind.
People of many faiths, including Christianity, commit sin every day, whether they recognize it, or at points in their life don't recognize it or don't care. "Honor thy father and mother"...I cringe at that one because as a smart-mouthed teenager I failed to "honor" my parents for which I am heartily sorry now. Are some sins worse than others? My belief after elementary study is all sin is sin, the same in God's eyes, but God is willing and eager to forgive if I ask for it and mean it and believe he forgives me. But I do keep asking...really? I hope He forgives me for that sin and others.
I know I'm not alone in that thinking. Will/did McVey ask for and find forgiveness? (Was he executed?). What about the 9/11 bombers?
IMHO McVey and the OKC bombing is a good example of what you and millions of others search and seek answers to, though you may be using it here to get at those of modern day political leanings that are in opposition to yours. And that's OK, because at least you are seeking.
Candy