Jessica repeatedly asked Sigg whether she would see her mother again, and he lied and said she would, said Anna Salter, a psychologist who testified during the two-day sentencing phase of Sigg's trial in Jefferson County District Court.
"He certainly had no empathy for Jessica Ridgeway, either during or after the crime," Salter said. She noted that Sigg ate a snack while he told police how he dismembered the girl.
Sigg, 18, pleaded guilty in September to 15 counts for Jessica's death and an attack on a female jogger atSalter said she did not directly examine Sigg, but she reviewed the facts of the case in writing her report for the prosecution. She did not call him a psychopath, but she said he had traits of a psychopath.
Salter said that when Sigg confessed to his mother that he had strangled and dismembered Jessica, he tried to hide what he viewed was his worst offense "I didn't rape her, I didn't torture her," he said.
Salter said Sigg was sexually aroused by dismemberment and that his mother found child pornography on his computer in 2008. Sigg's mother sent him to treatment, but he continued to view violent child pornography.
During the two-day sentencing hearing, Jefferson County District Court Chief Judge Stephen Munsinger will hear arguments and testimony from prosecutors, Sigg's attorneys and others.
Members of Jessica's family filled two rows in the courtroom Monday. Many people, including Sigg's mother, wore purple, Jessica's favorite color.
Two days before opening statements were set to begin in the trial against him, Sigg changed his plea to guilty against the advice of his attorneys and without any concessions from prosecutors.
Sigg pleaded guilty to a total of 15 charges, including first-degree murder, kidnapping, sexual assault of a child, sexual exploitation of a child and attempted kidnapping for the attack at Ketner Lake.
Sigg was 17 when he kidnapped and strangled Jessica. He turned 18 in jail.
Because Sigg was a juvenile at the time of the crime, he may not receive a sentence of life in prison without parole. Under a Colorado law passed in 2006, juveniles sentenced to life in prison must be eligible for parole after serving 40 years of their sentence.
But prosecutors have said they will ask Munsinger to order Sigg serve his sentences consecutively, ensuring he is never eligible for parole.
Defense attorneys want the sentences to be served concurrently.
Jessica was k idnapped while walking to her Westminster school on Oct. 5, 2012. Parts of her body were later found in an Arvada field and in a crawl space at Sigg's home.
