Repeat: Monster: Austin Sigg, 18, had spent a year watching violent child pornography depicting kids being raped and tortured before he kidnapped and butchered 10-year-old Jessica Ridgeway last year .
Monster: Austin Sigg, 18, had spent a year watching violent child pornography depicting kids being raped and tortured before he kidnapped and butchered 10-year-old Jessica Ridgeway last year .