“By comparison, it was about 4 years after he was sentenced to death that Oklahoma City bomber Timothy McVeigh was executed. “
You do know that McVeigh requested to be executed at the earliest time permitted don’t you?
Not quite.
McVeigh didn't drop his last appeal, which allowed the Federal Bureau of Prisons to set the date of his execution on January 16, 2001, until December 2000. He was sentenced to die on June 13, 1997.