Today's episode discusses two interesting cases. Both cases involve a homicide of a mother and a kidnapping of their infant child. Every file holds a mystery, every story deserves to be heard, these are the stories of Sylena and Allyson Dalton and Shauna and Zaylee Fryar.

On July 27, 1998, 10-week-old Allyson Dalton was napping with her mother, Sylena Dalton when someone entered their home, killed Sylena and took off with Allyson. Sylena’s murder remains unsolved, Allyson has yet to be found, and the case remains unsolved.

On the evening of May 1, 2011, three-month-old Zaylee Fryar vanished under suspicious circumstances with her mother, Shauna Fryar from their home. Six days later, Shauna's body was found dumped in the Cumberland River, 40 miles from their home. The search for Zaylee was unsuccessful and authorities felt their chances of finding her were slim.

On February 10, 2008, Maura Murray, a 21-year-old nursing student left university after lying to professors about a death in the family. She takes off in the middle of a snowstorm and police are unable to locate her after finding her vehicle crashed along a snowbank. Twenty years later there have been no breaks in the case, leading authorities to wonder what happened to her. This is Maura Murray's story.

On September 12, 2014, three-year-old William Tyrrell disappeared while playing with his sister at their foster grandmother's house. Despite a decade-long investigation involving more than one thousand leads, hundreds of persons of interest and dozens of searches, no trace of the boy has been found. This is William Tyrrell's story.