DNA

More than 30 years after an infant’s remains were discovered in the trash, DNA has linked a North Carolina couple to the child, police said.

After 37 years, a victim of serial killer Robert Hansen was identified using DNA. The victim was killed in Alaska. Hansen killed 17 women in his spree.

A teen was beaten and murdered in Iowa 50 years ago. Police say they have solved the cold case and it was the man the mother suspected decades ago.

A man is under arrest in connection to the brutal murder of a North Carolina college student killed in her off-campus apartment in 2012, authorities said.

Police have arrested a man after a grand jury in New Jersey indicted him in connection to the 22-year-old cold case murder of a teenager, officials said.

A man who murdered a woman 47 years ago was sentenced to life in prison. The murder of Carla Walker was cold until DNA testing provided new info.

Police in Sarasota, Florida, say they have solved the 1985 cold-case killing of a mom. The suspect was in prison on an unrelated murder charge.

After 36 years, an arrest has been made in the cold case of Leslie McCray's murder in Florida. Police identified the suspect using DNA and he was already in prison.

Some families have to wait years for answers, others have waited decades. These are some of the oldest cold case murders that police have solved.

The killing of Mia Zapta, a musician in the Grunge scene in the 1990s, left its mark on Seattle. But, it took nearly a dozen years for her killer to face charges.

Cops in Sarasota, Florida, say they solved the 1985 cold-case murder of a young mom. Police say DNA helped them identify the suspected killer.

Authorities used genetic genealogy to identify the person they believe killed 20-year-old Michelle Louise Wyatt in 1980 in her Santee, California, home.

Police in California say they identified the murderer of a woman killed 45-years ago. The suspect, who died shortly after the crime, was identified using DNA.

Authorities in Pennsylvania have arrested a new suspect in connection to a nearly 34-year-old murder case that sent an innocent man to prison for 16 years.

Las Vegas police announced they solved a 1989 cold-case murder of a girl killed on her way to school. A small DNA sample and an anonymous donation helped police.

A suspect has been connected to at least two sexual battery cases linked with Florida's "Woodline Rapist." The cold cases date to 2002 and 2003.

New technology and volunteer groups are helping police identify decades-old John and Jane Does. Finding their identities helps bring closure to families.

A woman in Indiana is accused of leaving a newborn in a dumpster in Pennsylvania a decade ago. Police say DNA helped solve the cold-case homicide.

Police in the Chicago Suburb of Naperville say they arrested a suspect in the 50-year-old cold-case murder of a teen. The suspect was found using DNA.

Police in Oregon say they arrested a suspect in the 41-year-old cold case and murder of a college student. DNA helped officers identify a suspect.

An Arizona man has been arrested on a charge of sexual conduct with a minor. He was the father of a child whose mother was about 14 years old when she conceived.

A man in Idaho was sentenced in a murder case where another, innocent, man served 20 years behind bars for the same killing. DNA helped free one man and convict the other.

A convicted killer-turned-dental hygienist recently found guilty of murder in Florida is now accused of killing another victim in Hawaii in 1982.