NEW : Hearing for Darren Vann is rescheduled after suspect refuses to speak in court . Prosecutors charge Vann with murder of second victim , Anith Jones . Vann has admitted to 7 killings in northern Indiana . Score: 6
NEW : Hearing for Darren Vann is rescheduled after suspect refuses to speak in court . Prosecutors charge Vann with murder of second victim , Anith Jones . Vann has admitted to 7 killings in northern Indiana . Authorities with cadaver dogs go through about 120 abandoned structures .