The charity founded by Sarah Ferguson, the former Duchess of York, is shutting down following the release of emails showing the depth of her friendship with the late sex offender Jeffrey Epstein. Sarah’s Trust, which focused on improving the lives of women and children, said in a statement late on Monday that it will close for the “foreseeable future,’’ following the revelations in latest documents released by the U.S. Department of Justice. Ferguson is the ex-wife of the former Prince Andrew, who was stripped of his royal titles due to his own links with Epstein.