A description for one who has a brilliant mind and superior intellect accompanied by a boarder line creepy obsession with true crime and or all things mystery. They are probably bad at geography and measurement conversions, but what they lack in skill they make up in witty banter.
As for the previous poster, you fool that's not what credophile means. Credophile is an awesome term coined originally by the writer L. Sprague de Camp, in a letter to James Randi.
It's a label for those who appear particularly gullible and are particularly inclined to believe whatever claims come their way. (See Scientologist).
A credophile gets positive pleasure from belief and pain from doubt... The credophile collects beliefs the way a jackdaw does nest ornaments: not for utility but for glitter. And, once having embraced a belief, it takes somethingmore than mere disproof to make him let go.
One who is consumed by the desire to assure that credit is assigned to oneself for research, stories, references and other information for which it is useful to be considered "the source."
"I told Grace to buy that new vitamin supplment. I explained that it was recommended to me by Matt, because he's a total credophile and he would freak out if I didn't tell her where I'd heard about it."