Police are continuing to search for clues in the case of the murdered parents of the child known as "Baby Holly."

A Florida man is scheduled to be executed for killing a woman after escaping from prison in 1990

"Baby June" was found dead, floating in the ocean off the coast of Florida, on June 1, 2018. Authorities said they have arrested the newborn's mother for her murder.

Massachusetts State Police say a man wanted in connection with a 1991 stabbing death during a fight has been found, working on a shrimp farm  in Guatemala

After 65 years, Philadelphia police have identified the body of Joseph Zarelli, who was 4 years old when he was beaten and stuffed into a cardboard box.

A little boy killed more than 60 years ago has finally been identified.

Joseph Augustus Zerilli was found dead in a box in 1957, police said.

The little boy's body was found in a box in February 1957.

A convicted murderer, known as the "Torso Killer," pleaded guilty to murdering a dance teacher in 1968 and admitted to killing four other women in the early 1970s.

DNA advances helped investigators solve the 42-year-old cold case of Eve Wilkowitz, who was killed in New York in 1980.

Police in Rhode Island say DNA evidence and the use of forensic genealogy has led to an arrest in a 35-year-old sexual assault case

Authorities in Massachusetts, who earlier this week said they had finally identified the “Lady of the Dunes,” a woman whose mutilated body was found on Cape Cod in 1974, are now looking for information about a man she may have married

Plus, Democrats and Republicans make their final pitches to voters ahead of the 2022 midterm elections and the Supreme Court hears two cases that could upend affirmative action in higher education.

A judge is mulling an Arizona death row prisoner’s request to have fingerprint and DNA tests conducted on evidence from the two 1980 killings for which he’s scheduled to be executed next month

Moody confessed in May to killing the 17-year-old and led law enforcement to her remains. He had been a person of interest in the killing for over 10 years.

Investigators in Georgia have used genealogy technology to determine the killer of a Michigan woman who vanished more than 33 years ago.

John Carey, 63, is accused of strangling Claire Gravel, 20, to death in Beverly, Massachusetts.

The body of 20-year-old Claire Gravel was discovered in the woods on June 30, 1986, in Beverly, Massachusetts.

A Wisconsin man is expected back in court after a recent traffic stop allegedly tied him to a decades-old double murder. ABC News' Rhiannon Ally has the details.

ABC News' Bob Woodruff follows cold case solving duo Adventures with Purpose as they dive deep to help families find their missing loved ones.

Karen Stitt, 15, was attacked on her way home and stabbed 59 times to death after being sexually assaulted, prosecutors said.

Forty years after a 15-year-old girl was stabbed to death in Northern California, DNA has led to the arrest of her suspected killer, prosecutors said.

More than 30 years after two Orange County women were killed, the police have found the suspect using DNA evidence.

A suspect has been arrested in a 19-year-old woman's 1975 murder after a genetic genealogist turned to a brand new investigative approach.

A skeleton found with a pair of cowboy boots three years ago has now been identified as a British man who has been missing for over two decades.

A suspect has been identified in the 1990 cold case murder of a Seattle teenager through the investigative tool of genetic genealogy.

“Keeper of the Ashes” revisits the investigation into the rape and murders of three girls in Locust Grove, Oklahoma, over 45 years ago.

Investigators in South Carolina have made a significant break in the case of Brittanee Drexel, a teen who disappeared in 2009 while vacationing for spring break.

The 11-year-old girl was stabbed to death in Massachusetts more than 30 years ago.

More than 30 years after an 11-year-old girl was stabbed to death in Massachusetts, a suspect has been arrested for her murder.

ABC News' Bob Woodruff follows cold case solving duo Adventures with Purpose as they dive deep to help families find their missing loved ones.

Police have named a man who died in 2013 as the serial killer responsible for the deaths of three women in the late 1980s.

Harry Edward Greenwell, who died in 2013, was linked to several murders through DNA evidence that was a 99.99% match to his own.

Police have named a man who died in 2013 as the serial killer responsible for the deaths of three women in the late 1980s.

Police say new DNA evidence has helped them identify the killer of a woman murdered 42 years ago. ABC News’ Andrea Fujii reports.

Suffolk County police announced that the alleged killer of Eve Wilkowitz, 20, who died in 1980 in Bay Shore, New York, was identified as Herbert Rice, a man who died of cancer in 1991.

Eve Wilkowitz, 20, was kidnapped and killed leaving a train station in New York in 1980.

Authorities used DNA technology to identify the previously unknown girl as Sharon Lee Gallegos, whose remains were found in the desert in Arizona in 1960.

The case involved a 9-year-old girl in Pennsylvania who was snatched and killed while walking to school.

The homicides were reportedly connected to the Dixie Mafia, the group involved in dozens of violent crimes across the Southeast in the 1960s and 1970s.

A 50-year-old triple homicide case has finally been closed, after a suspect's son provided clues that led investigators to the so-called Dixie Mafia.

A North Carolina who went missing with her young daughter in 2016 have been found safe, according to authorities.

Terrance Prochaska said he was assigned to the unsolved Jodi Huisentruit case in 2010. “I thought, ‘What a great opportunity to do something that maybe I could make a difference,’” Prochaska said.

A convicted murderer has been charged in connection with two decades-old cold-case homicides, authorities said.

Charles Helem, 52, currently serving life in a Virginia state prison, confessed to two decades-old cold case homicides, police announced.

Forty-five years after an Auburn University student vanished on his way to school, his car -- and possibly his remains -- have been recovered.

Authorities are investigating new clues on social media to help solve the 2017 murders of two girls in Indiana. ABC News’ Andrea Fujii has the new details.

Kyle Clinkscales' wallet was also discovered in the white Ford Pinto.

Kim Bryant, 16, was kidnapped, raped and killed on Jan. 26, 1979, police in Las Vegas said.

John Getreu was on trial for the murder of college student Janet Taylor.