If there is more information made public,
the criminals have more tools at their disposal
those rooting against the criminals have more information about what to look out for
I see it benefiting both sides quite well,
If you consider a serial killer to be a magician, then these shows are kind of like someone giving out the methods and secrets to their tricks.
Once the information is public, it's less dangerous.
(I don't have a strong opinion one way or the other, but I think this side of the discussion needs a bit more of a push
)