The woman known as the serial stowaway will remain in jail following another arrest at O’Hare Airport last week. Marilyn Hartman was ordered held without bail yesterday for violating her probation. Hartman was arrested Friday night for trespassing after trying to pass through security at O’Hare without a boarding pass or ID. The 67-year-old was on probation for a 2018 incident in which she sneaked onto a London-bound flight from O’Hare.