A missing persons case that fell through the cracks of the NYPD, while a mother desperately searched for her son.

Hisako Hasegawa lived in a Manhattan hotel room for more than 40 years. It's also where she died.

Angel Irizarry is a former detective who has been trying to track down a missing member of his own family.

Dawn Powell was a well-known writer, admired by Ernest Hemmingway. Then her books and body disappeared.

Melinda Hunt has spent 30 years documenting Hart Island and advocating for families with loved ones buried there.

Annette Vega has been searching for her biological father for 30 years. That search is coming to the end.

Before Noah Creshevsky died, he had to decide where his body would end up. He chose Hart Island.

Untangling mysteries from Hart Island, America's largest public cemetery.

Untangling mysteries from Hart Island, America's largest public cemetery.

In the spring of 1981, two teams met for a standard minor league baseball match. They didn't know they'd be playing the longest game in baseball history.