Eric Olaf Estenson

Eric Olaf Estenson was a 32-year old Swede who, in 1992, attempted to obtain nuclear parts from Ukraine to build a 20-30 megaton nuclear bomb. He attempted this in order to blackmail the Swedish authorities in Stockholm to provide 2 billion dollars in aid to Ukraine. He was swiftly and promptly arrested by the Ukrainian authorities and extradited back to Sweden.

References

[http://www.sbu.gov.ua/sbu/control/en/publish/article?art_id=43649&cat_id=42951 Ukraine article (in English)]