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(Francisco Kjolseth | The Salt Lake Tribune) Salt Lake City Assistant Police Chief Tim Doubt speaks at a press conference ... (Francisco Kjolseth | The Salt Lake Tribune) Salt Lake City Assistant Police Chief Tim Doubt speaks at a press conference ... (Francisco Kjolseth | The Salt Lake Tribune) Juliana Cawley, friend of missing 23-year-old Mackenzie Lueck, reads a prepar... (Francisco Kjolseth | The Salt Lake Tribune) Juliana Cawley, friend of missing 23-year-old Mackenzie Lueck, reads a prepar... (Francisco Kjolseth | The Salt Lake Tribune) Salt Lake City Assistant Police Chief Tim Doubt speaks at a press conference ...