22. Moscow Maniac: Sergey Golovkin The Fisher

In the 1980's, boys ages 10-16 were going missing. Their mutilated bodies would later turn up in secluded wooded areas.
It took a while before police were able to track down the man that turned out to be one of Russia's most prolific killers.

Promos from our friends
Murder In My Family
&
Explain To Me

Links:
Mad Russian Killer
Wiki
YouTube~Its in Russian
Revolvy