Detectives in Smyrna, Georgia, received a call in October of 2005.
Kasi Peek was dead.
Her husband, John Peek, had been the one to place the call.
He told officers he’d found her murdered in her condo.
At first glance, the scene looked like a robbery gone wrong.
The place was ransacked. Things strewn across the floors.
But there were no signs of forced entry.
Nothing was taken.
To detectives, it seemed... staged.
More than a decade earlier, in 1996, two women had been murdered in nearby Marietta.
Their names were Carol Marlin and Maggie Ginn.
There were no signs of forced entry.
Nothing was taken.
And to detectives in Marietta, that crime scene had also seemed staged.
Investigators did suspect Carol’s husband in the murders, but had no physical evidence.
Their cases went cold.
Until 2005, when Smyrna detectives questioned John Peek about his wife Kasi’s death.
“Is there anything in your past I need to know about?” one of the detectives asked near the end of the interview.
Yes, as a matter of fact. Something happened in 1996.
“I had a wife at the time,” John said. “She was murdered.”
That wife was Carol Marlin.
What are the odds that one man would be married to two women who were both murdered?
To see the secrets unravel, watch “Deadly Omission” on Peacock now.
You can also watch on the NBC app or listen to it on our podcast.
After you’ve finished the episode, you can watch Kasi’s loved ones reflect on the outgoing woman who was always smiling.
You can also watch Carol’s sister and friend talk about how intelligent and fun she was.
Plus, watch Maggie Ginn’s granddaughter share one of her favorite memories of her.
You can also listen to this week’s Talking Dateline with Andrea Canning and Blayne Alexander in which they take you behind the scenes of the episode.