'I believe ... they're still alive': On 20th anniversary of Bradley sisters' disappearance, family keeps hope Grace Hauck and Eric Ferkenhoff, USA TODAY © Max Herman, For USA TODAY Sheila Bradley-Smith holds a balloon release on the 35th Street Pedestrian Bridge on Tuesday before a vigil for her nieces, Tionda and Diamond Bradley, who disappeared 20 years ago. CHICAGO — As they have for the past two decades, Tionda and Diamond Bradley's relatives gathered on Chicago's South Side on Tuesday to release balloons and pray for answers in the sisters' 2001 disappearance. Tiond...