Boston - FBI agents in Boston and British police are investigating the parents of convicted baby-killer Louise Woodward over discrepancies of at least $340,000 in the former au pair's defence fund, the Boston Herald has reported. FBI agents have been asking about bills Susan and Gary Woodward, who are in the process of divorcing, submitted for reimbursement to their daughter's defence fund, the newspaper said. The British embassy asked the FBI for assistance on behalf of the major crime unit of the Cheshire County Constabulary, which covers the Wood wards' home in Elton, England, the Herald said.