 Thorson chases Bernardo on foot through the streets and to an elevated train where Thorson is forced to climb on the roof of the train to avoid getting shot at.The chase leads to the Marina City complex where they both steal cars and chase each other to the top level the parking garage, where the psychotic fugitive drives off the edge and plunges several stories into the Chicago River to his apparent doom.After returning to Los Angeles that evening, Thorson learns from Price that Dotty has been kidnapped by Rocco Mason and is holding her at the high school where she teaches.