OK, I'm totally making an unfair assumption about this guy's religious beliefs here, but for the sake of argument, and because there are definitely people in the world who share his views and definitely have these religious beliefs, let's assume that this guy's a fundamentalist Christian. Is there really such a thing as innocent life, in "his" opinion? I would argue not: see original sin. So assuming (as he does) that an unborn child is alive, they have sinned. Is it not then justified to kill them? If not, then how does one justify killing a convicted criminal?With regards to your anecdote, I think the contradiction diminishes if you consider him to value only innocent life. If the convict has been condemned, barring error on part of the justice system, then he is not innocent.