Solomon Dwek, whose secret cooperation in a New Jersey corruption and money-laundering probe led to criminal charges against 44 people, pleaded guilty Tuesday to bank fraud and money-laundering charges.
The plea by Mr. Dwek, a 37-year-old real-estate developer, came after authorities in July arrested public officials and religious leaders — including several New Jersey mayors and rabbis in New Jersey and New York — based largely on recordings Mr. Dwek made on behalf of the Federal Bureau of Investigation.
