The Green Pen

A young mother is found murdered in her home. From the onset, there are two suspects with ample motive, but an unusual interview and security camera footage has investigators pivot in a horrifying new direction. Learn more about your ad choices. Visit podcastchoices.com/adchoices 

California police are baffled when an innocent man's DNA is found at the scene of a deadly home invasion. Authorities team with the man's defense attorney to determine how the seemingly impossible could have happened. Learn more about your ad choices. Visit podcastchoices.com/adc ... Show More

When the 20-year-old clerk of an Atlanta-area smoke shop is gunned down during a robbery, investigators have only descriptions of the killers and the make of their getaway car. Investigators used a videotaped confession to smoke out the killers. Learn more about your ad choices. ... Show More

An investigation into threatening letters sent to a popular elementary school teacher. To learn more about how HLN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices 

A security guard disappeared from his post without a trace; his remains were found a year later in a remote camp site. More than a decade would pass before a phone call breathed life into the cold case, and a paint smear on the bottom of the victim's boot helped scientists determ ... Show More

There was no apparent reason for the young, healthy college student to be dead. But when the medical examiner found the tiniest of clues during the autopsy, investigators were able to unravel the mystery of betrayal and revenge. To learn more about how HLN protects listener priva ... Show More

A little girl disappears from a Christmas party. To learn more about how HLN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices 

Women in a small Louisiana city live in fear of a rapist who leaves no clues to his identity. But computer technology and behavioral science combine to give police a new forensic tool: geographical profiling. To learn more about how HLN protects listener privacy, visit cnn.com/pr ... Show More

When a sketch of a suspect is released, conspiracy theories spread. The families, looking for an arrest, take their case to the national media. As the investigation goes quiet, the noise of speculation grows louder.To learn more about how HLN protects listener privacy, visit cnn. ... Show More

When a college co-ed vanished without a trace, her fellow students were concerned about her safety… and their own. Weeks later, the body of an unknown female was discovered 700 miles away in the ashes of a barn fire, and an alert police officer realized the two crimes might be co ... Show More

A Texas woman claims an intruder killed two of her sons but detectives question her story upon discovering inconsistencies. To learn more about how HLN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices 

Doctors don't know why the young scientist is gravely ill. When tests finally reveal the cause, it's too late to save him. Police hope that lab analysis of his hair - showing when attempts were made on his life and what was used - will lead to the killer. To learn more about how ... Show More

Early one morning, a woman went missing on her way to work. A strand of hair in her hairbrush led investigators to unravel the mystery. To learn more about how HLN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoice ... Show More