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 ...

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 ...

Smith credits advances in medical technology with changing perception of what causes drug addiction. "Back in the 70s when heroin was a real problem in the inner cities, we didn't have brain scanners.

About 15 years after Hartman’s murder, in March 1990, Smith took a second wife: Fran Gladden Smith, 49, according to "Relentless." Fran married him after dating for just two months. A year and a half ...

Fran Smith talked about her cover story for [National Geographic's] September 2017 issue, "The Science of Addiction, on the impact of addiction on the brain's pathways.

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 ...