There are tens of thousands of unidentified people nationwide and nearly 350,000 unsolved homicides, according to the FBI Uniform Crime Reporting data.

“In a new "20/20" episode, The Code Breakers, airing March 7 at 9 p.m. ET on ABC, and streaming the next day on Hulu, David Muir explores the innovative DNA technology Othram used to crack the murder ...

The latest episode of ABC's 20/20, titled The Code Breakers, will revisit how advanced DNA technology in 2023 helped solve Cathy Swartz's murder in 1988, which remained a cold case for 35 years.

Andrea Michelle Reyes, now 27, was just 23 months old when her mother, Rosa Tenorio, allegedly kidnapped her from their home in New Haven, Connecticut, in 1999.

A toddler, who was kidnapped by her own non-custodial mother in 1999, has been found alive in Mexico, authorities said.

A toddler, who was kidnapped by her own non-custodial mother in 1999, has been found alive in Mexico, authorities said.

There are tens of thousands of unidentified people nationwide and nearly 350,000 unsolved homicides, according to the FBI ...

A forensic lab in Texas focused solely on cold case investigations is gaining attention for its ability to use powerful DNA testing to help crack unsolvable cases.

A forensic lab in Texas focused solely on cold case investigations is gaining attention for its ability to use powerful DNA ...

A Connecticut toddler who was abducted 25 years ago has been found alive in Mexico, with her identity confirmed by DNA ...

Andrea Michelle Reyes was just 23 months old when she was allegedly abducted by her mother, Rosa Tenorio, from her New Haven ...

Connecticut police have found a woman, who was kidnapped 25 years ago from New Haven as a toddler, in Mexico. Andrea Michelle ...