Against all odds, her cousin Gina DeJesus was found alive after nearly a decade. The story captivated Cleveland and the nation. But for Colon, the pain of those years remains a driving force.

The disappearance of Michelle Knight stands in contrast with the disappearances of the two girls she was found with: Amanda Berry, now 27, and 23-year-old Gina DeJesus. Berry was only 17 when she ...