A librarian’s close observation of a Utah man’s reading habits helped detectives pin a murder charge on him. Curtis Nichols, 35, allegedly researched legal defenses before strangling his wife to death. Nichols told police he found his wife dead on their kitchen floor after leaving the home for just a few minutes. His DNA was found under her fingernails and he appeared to have injuries, according to the prosecutor.

Nancy Grace is joined by forensics expert Joseph Scott Morgan, New York psychologist Caryn Stark and People magazine reporter Steve Helling to talk about the case — and why a judge allowed the accused killer to go free on $100,000 bond.

Also read: Husband researches criminal defense strategies online before strangling his wife to death: Prosecutor

Anthony Weiner’s day of reckoning for sexting with a teen has arrived. The former New York congressman is in federal court to learn how long he’ll be in prison for sexual messages to a girl. Grace, Helling and Stark discuss the past and present scandals surrounding Weiner, whose wife was Hillary Clinton’s top aide.

Also read: Anthony Weiner sentenced to 21 months for sexting with a teen girl

The parents of a 7-year-old boy kicked their son out of their Texas home because they believed he was possessed by a demon. The couple is now facing child endangerment charges. Nancy looks at the strange case with child advocate, Ashley Willcott.

Also read: Couple abandons little boy, kicks him out of family home and claim he’s possessed with demons: Police

“Crime Stories with Nancy Grace” is now a national radio show, heard on SiriusXM’s Triumph Channel 132, five times a day. You can also subscribe and download the daily podcasts at iTunes and Google Play.

[Feature Photo: Handout]