As the mysteries around Clark Rockefeller, the apparent con man who abducted his daughter during a social worker-supervised visit, are still being unraveled, here's an definitely bizarre addition: The German national actually used the Son of Sam's Social Security number to get his stock broker's license. The NY Post reports that Rockefeller, born Christian Gerhartsreiter, was fired from his firm when it learned he used David Berkowitz's SS#. A German man, a friend of Rockefeller's father, described Rockefeller as "crazy, always crazy He was like Batman before there was Batman, always going into different roles." Some classmates in Bavaria, Germany suspect he fled the country to avoid military service.