After a man's wife was reported missing, authorities uncovered a dark secret from his past

After Fran Smith vanished in 1991, her husband’s dark secrets began to unravel. 

In the three decades since, John Smith, 73, was convicted of killing his first wife in Ohio years earlier, in a murder authorities weren’t even aware of until they began investigating Fran’s disappearance. 

Fran’s body has never been found, but prosecutors in New Jersey charged her husband in her death five years ago. Then the case took an unusual turn: Those same prosecutors dropped the murder charge...