In two posh villas outside the small town of Ricany, near Prague, one of the most dreaded mob families in the world savagely murders its terrified victims. The mob’s young enforcers, trained by veterans of the Afghanistan war, are infamous for their extreme brutality. Their quarry, usually businessmen who have balked at extortion demands, are repeatedly stabbed and tortured, then mutilated before they are butchered. The carnage is so hideous that it has scared the daylights out of competing crime groups in the area.

The torture chambers are run by what international police officials call the Red Mafia, a notorious Russian mob family that in only six years has become a nefarious global crime cartel. Based in Budapest, it has key centers in New York, Pennsylvania, Southern California, and as far away as New Zealand.

The enigmatic leader of the Red Mafia is a 52-year-old Ukrainian-born Jew named Semion Mogilevich. He is a shadowy figure known as the ”Brainy Don”–he holds an economics degree from the University of Lvov–and until now, he has never been exposed by the media. But the Voice has obtained hundreds of pages of classified FBI and Israeli intelligence documents from August 1996, and these documents–as well as recent interviews with a key criminal associate and with dozens of law enforcement sources here and abroad–describe him as someone who has become a grave threat to the stability of Israel and Eastern Europe.

”He’s the most powerful mobster in the world,” crows Monya Elson, who is listed in classified documents as one of Mogilevich’s closest associates and partners in prostitution and money laundering rings. The Brighton Beach­based Elson, who once led a pack of thugs and killers known as Monya’s Brigada, is currently in the Metropolitan Correctional Center in lower Manhattan awaiting trial for three murders and numerous extortions.

In July 1993, after Elson was grievously wounded by rival mobsters in a bloody shoot-out outside his Brooklyn apartment building, Mogilevich spirited him out of the country. Mogilevich then set up his Russian Jewish refugee friend in an alleged massive money-laundering scheme in Fano, Italy, where he was eventually arrested and extradited back to America. Elson, an integral part of the Red Mafia, had been one of the most feared mobsters in Brighton Beach, ground zero for Russian organized crime in America, which has exploded here following perestroika.

”If I tell on Mogilevich, Interpol will give me $20 million,” boasted Elson. ”I lived with him. I’m his partner, don’t forget. We are very, very close friends. I don’t mean close, I mean very, very close. He’s my best friend.” Nevertheless, after extensive interviews over the course of the last six months, Elson ultimately confirmed some of the details about Mogilevich contained in the classified FBI and Israeli documents.

Allegations of Mogilevich’s devilish array of criminal activities are extensively detailed in the reports:The FBI and Israeli intelligence assert that he traffics in nuclear materials, drugs, prostitutes, precious gems, and stolen art. His contract hit squads operate in the U.S. and Europe. He controls everything that goes in and out of Moscow’s Sheremetyevo International Airport, a ”smugglers’ paradise,” says Elson. Mogilevich bought a bankrupt airline in a former Central Asian Soviet republic for millions of dollars in cash so he could haul heroin out of the Golden Triangle. Most worrisome to U.S. authorities is Mogilevich’s apparently legal purchase of virtually the entire Hungarian armaments industry, jeopardizing regional security, NATO, and the war against terrorism.

In one typical criminal deal, Mogilevich and two Moscow-based gangsters sold $20 million worth of pilfered Warsaw Pact weapons from East Germany, including ground-to-air missiles and 12 armored troop carriers, according to the classified Israeli and FBI documents. The buyer was Iran, says a top-level U.S. Customs official who requested anonymity.

In another deal, an FBI informant told the bureau that one of Mogilevich’s chief lieutenants in Los Angeles met two Russians from New York City with Genovese crime family ties to broker a scheme to dump American toxic waste in Russia. Mogilevich’s man from L.A. said the Red Mafia would dispose of the toxic waste in the Chernobyl region, ”probably through payoffs to the decontamination authorities there,” says a classified FBI report.

Mogilevich is particularly intrigued by art fraud. In early 1993, he reached an agreement with the leaders of the powerful Solntsevskaya crime family in Moscow to invest huge sums of money in a joint venture: acquiring a jewelry business in Moscow and Budapest. The business, according to classified FBI documents, was to serve as a front for the acquisition of jewelry, antiques, and art, which the Solntsevskaya mob had stolen from churches and museums in Russia, including the Hermitage in St. Petersburg. The gangsters also robbed the homes of art collectors and even broke into synagogues in Germany and Eastern Europe to steal rare religious books and Torahs.

Mogilevich’s operation, again in collusion with the Solntsevskaya mob, also purchased a large jewelry factory in Budapest. Russian antiques, such as Faberge eggs, are sent to Budapest for ”restoration.” Mogilevich’s men ship the genuine Faberge eggs to an unwitting Sotheby’s auction house in London for sale, then send fake Faberge eggs as well as other ”restored” objects back to Moscow.

Mogilevich’s early years are murky. Soviet authorities first learned of his criminal activities in the 1970s, when he was a member of the Liubertskaya crime group that operated in the Moscow suburb of the same name. He was involved in petty thefts and counterfeiting.

But Mogilevich made his first millions fleecing fellow Jews. In the mid 1980s, when tens of thousands of Jewish refugees were hurriedly immigrating to Israel and America, Mogilevich made deals to buy their assets–rubles, furniture, and art–cheaply, promising to exchange the goods for fair market value and send refugees the proceeds in ”hard” currency. Instead, he sold their valuables and pocketed the considerable profits.

In the 1980s, he established a petroleum import-export company, Arbat International, and registered it in Alderney, one of the Channel Islands, which is known to be a tax haven. One of his partners–with a quarter share of the company–was Vyacheslav Ivankov, the legendary Russian criminal who in March 1992 became Godfather of the Russian mob in America. Ivankov was convicted in 1996 of extorting two Russian-born Wall Street stockbrokers. He now resides in Raybrook, a Federal prison in upstate New York.

In early 1990, Mogilevich fled Moscow, as did many other dons, to avoid the gangland wars that were then roiling the capital. Mogilevich and his top henchmen settled in Israel, where they received Israeli citizenship. He ”succeeded in building a bridgehead in Israel” and ”developing significant and influential [political] ties,” says an Israeli intelligence report.

Mogilevich is married to a Hungarian national, Katalin Papp. That marriage allowed him to legally emigrate to Budapest, Hungary, in 1991, where he began to build the foundations of his global criminal empire. He bought a string of nightclubs in Prague, Riga, and Kiev–called the ”Black and White Clubs”–that has become one of the world’s foremost centers of prostitution. Monya Elson is a partner in the clubs, according to his own admission and classified FBI documents. The Black and White Club in Budapest became the hub of Mogilevich’s operations. He quickly built a highly structured criminal organization, in the mode of a traditional American mafia family. Indeed, many of the organization’s 250 members are his relatives.

To the consternation of international law enforcement officials, Mogilevich began to legally purchase much of Hungary’s arms industry. The legitimate companies he bought include: