'Serial stowaway' Marilyn Hartman attacked at Cook County Jail 03/05/2020 8:35 am PST Comments WGN / Cook County via WGN: CHICAGO (WGN) -- Marilyn Hartman, the woman known as the "serial stowaway" for sneaking onto airplanes, was attacked by another detainee at the Cook County Jail. Hartman, 68, is in custody for violating probation. She is being held at the jail's designated hospital area for females with mental health issues. Officials said she was attacked around 5:45 p.m. Tuesday by a woman who was in the middle of a mental health episode. The woman started hitting Hartman and another detainee. Hartman and the other person were evaluated and no injuries were found. MORE: 'Serial stowaway' Marilyn Hartman attacked at Cook County Jail - WGN #Assault #Chicago #Illinois #Incarceration #WGN Related Stories Serial stowaway charged after boarding Chicago flight bound for London 'Serial stowaway' sentenced to 18 months' probation for sneaking on plane Serial stowaway arrested again at Chicago’s O’Hare airport Waiting for your permission to load facebook comments.