Does it .after?
Like, does this one being true or not change anything?
Is killing a baby for the evulz really out of character? Like, if there's a person where you can say 'he killed a baby just to get rid of the evidence if the girl he raped' and everyone says 'yeah that makes sense he would do that. Killing a baby to cover up pedophilia sounds so him, that's in line with how he behaves most days. I'd be shocked if he hadn't killed a few babies to cover up little girls he raped, now that I think about it.' does it even matter if he killed the baby?
I feel like it doesn't. I feel like this hypothetical person was already so far past the moral event horizon that they needed to be swinging from a tree years ago. Sorting out specific crimes is something we can manage posthumously.