The so-called serial stowaway is still in jail after being arrested again at O’Hare Airport last week. Marilyn Hartman appeared in court yesterday, where a judge granted her bail but ordered her to remain in custody until the judge overseeing her last felony allows her release. Hartman was charged with criminal trespass after she was arrested Friday night while trying to pass through security at O’Hare without a boarding pass or ID. She has made headlines over the years for regularly trying to sneak onto airline flights. Hartman is on probation for a 2018 incident in which she sneaked onto a London-bound flight from O’Hare.