Another co-founder, Stephen Lawrence, previously pleaded guilty to criminal conspiracy. In a plea deal, Mr. Lefebvre agreed to cooperate with prosecutors and testify if necessary. He also agreed to be partly responsible for the $100 million the government is seeking in restitution.
Although the conspiracy charge carries a potential prison term of up to five years, cooperation in the case is likely to greatly reduce any potential sentence.
The government has said that nearly all of the $5.1 billion in transactions processed in the first half of 2006 involved online gambling, and most of the revenue was generated by American customers.