Why You Don't Want to Meet Him:
Nikolai Dzhumagaliev is as close to a real life Hannibal Lecter as you can get. The main difference is that Dzhumagaliev has metal teeth.
Operating in 1980 in the former Soviet Union, Dzhumagaliev is one of the most prolific serial killer cannibals the country has ever seen. Affectionately called "Metal Fang" for the set of white, metal teeth which had replaced his own chompers (making himself a sort of hybrid between Lecter and Jaws from Jaws from James Bond), Dzhumagaliev is said to have killed and eaten somewhere between 50 to 100 women... and even served a few portions to his unknowing friends.
"No, seriously, Nikolai, what is in this?"
No, we didn't make this guy up.
Why You Might Meet Him Anyway:
After being sentenced to a mental institution in Uzbekistan and escaping once, the government decided that less than 10 years of rehabilitation was enough for this serial killer and simply let him go.
So Where Is He Now?
Very little is known of Dzhumagaliev's current whereabouts, though he is said to be living with his relatives in Eastern Europe. However, being a free man and all, he can travel anywhere he pleases. Perhaps a place where almost no one has heard of him. Like your town, for example.
It could be your neighbor.
Nikolai has always been described as a very charming and well-spoken man, and one not bad to look at to boot (which only helped him lure more women into his fridge). The Jaws teeth are, thankfully, a dead give away. But hey, he could totally blend in at a James Bond convention. Unless he keeps his mouth closed, in which case he could blend in anywhere at all. Your basement, for instance.