Bloodline Detectives: Hosted by Nancy Grace

A 7-year-old girl is kidnapped and raped, but it takes almost 20 years for her assailant to be caught.

Valentine's Day, 1974. Carla Walker is raped and killed, leading to a cold case that takes 46 years to crack.

In 1979, Kim Bryant's body is discovered in the Las Vegas desert. It will take 40 years to name her killer.

38 years after her murder, Linda Slaten's sons finally learn who killed their mother thanks to DNA science.

A killer evades justice for the murder of Diana Hanson for 38 years until genetic genealogy can identify him.

When an unknown woman commits suicide in a cemetery in 1996, the mystery of who she is lasts for decades.

A case of an unidentified body and a child abduction from the 1960s may be more connected than police thought.

Sylvia Quayle is murdered in her Colorado home. Four decades later, science brings her killer to justice.

DNA science finally identifies both killer and victim from a murder that took place back in Florida in 1991.

Genetic genealogy brings answers to the families of two little girls who were murdered in 1986 in Tacoma, WA.

Investigative genetic genealogy solves the decades-old rape and murder of Naval recruit Pamela Cahanes.

When Mary Scott is found murdered in her San Diego home, an investigation is opened that will last 51 years.

Las Vegas, '89. 14-year-old Stephanie Isaacson is raped and murdered. Will a DNA sample uncover her killer?

Will new forensic science finally be able to reveal who murdered Tonya McKinley on New Year's Eve in 1985?

The 30-year hunt for a killer starts when Darlene Krashoc's body is found behind a restaurant in 1987.

A town in Washington lives in fear after a 17-year-old girl is abducted and raped without a suspect in sight.

The 1959 rape and murder of 9-year-old Candy Rogers in Spokane, WA is solved six decades later thanks to DNA.

Police are stumped when a toddler's body is found in Escatawpa River, leading to a decades-long mystery.

Michelle Wyatt is found strangled to death in 1980. Few leads arise until 41 years later, thanks to forensics.