(CNN) The apparent suicide of financier and accused sex trafficker Jeffrey Epstein early Saturday could lead to more accusers and witnesses stepping forward as well as a flurry of civil suits against the multimillionaire's estate, according to legal experts. Authorities believe Epstein, 66, hanged himself at New York's Metropolitan Correctional Center, a law enforcement official told CNN -- less than a day after a court unsealed documents detailing disturbing claims against him and associates. His attorney is calling for an investigation into his death. "The federal criminal case will end with his death," CNN legal analyst Paul Callan said.