The new narrative of the America Haters is “we shouldn’t lower ourselves to his level by putting him to death”.
And then they also through in the tired old “if we execute him, he will be a marter to the radicals and we’ll make them mad”.
Note that neither of those popular arguments find approval from God in Scripture. Wonder who cooked them up...?
If we don't execute him, he will recruit other terrorists in prison, or he may escape, or he may kill guards or other men in prison for lesser crimes. If execution was good enough for McVeigh, it's good enough for this cold-blooded assassin.