The Brief Michelle Macias says her sister, Magdalena 'Madzia' Jablonska, was the heart of their family before she was killed in Saturday's Fox River boating crash. Stevenson is accused of hitting and running over Jablonska's boat, who was inside another boat with her fiancé and their dog. Prosecutors said the boat crash was so horrific, Jablonska suffered lacerations and was decapitated in the crash. Jablonska's family says her fiancé and dog were also injured, but are expected to be ok.Magdalena JablonskaJablonska's family told Fox Chicago they want people to know 'Madzia' for who she was before Saturday's crash. What they're saying:For Michelle Macias, Madzia was never just an older sister.