
Hey Dateline fans! As a bonus, we’re giving you a special preview clip of our new podcast series, Trace of Suspicion. After seemingly healthy 23-year-old Marine Todd Sommer dies unexpectedly, his widow Cindy’s lavish spending, cosmetic surgery, and wild partying raise investigators’ suspicions. They accuse her of poisoning him with arsenic for his life insurance, setting off a criminal case that takes a stunning turn... Josh Mankiewicz sits down with the woman at the center of it all in Dateline’s newest podcast. If you like what you hear, just search Trace of Suspicion to listen to the first two episodes now, completely free. Or subscribe to Dateline Premium on Apple Podcasts, Spotify or DatelinePremium.com. Subscribers get early access to new episodes and can listen to all Dateline podcasts ad-free.
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Josh Mankiewicz
Hey, it's Josh Mankiewicz from Dateline with a special preview of my new podcast called Trace of Suspicion. Death comes for us all eventually. We can never know exactly when, where, or how. What is known is that the Grim Reaper is always out there waiting, checking our names against a list, like some bill collector on commission. United States Marine Sergeant Todd Summer had every reason to think his appointment with death was still decades away. After all, he was only 23. Except sometimes the years don't matter. As he got ready for bed that night in February 2002, the Reaper was watching. Todd had been battling some kind of bug for more than a week. Nausea, diarrhea, stomach pains, chills, fever, the full menu of misery. The doctors at the Miramar Marine Base in San Diego thought this might be food poisoning. Maybe that gas station egg roll he had eaten. We do not know how much sleep Todd Summer actually got that night. We do know that at about 1:30 in the morning, his wife Cindy was awakened by the sound of her husband gasping for breath.
Cindy Summers
He got up and he walked towards the bathroom and turned around and just looked at me and, like, just couldn't catch his breath.
Josh Mankiewicz
Years later, the memory of that night is still fresh for Cindy.
Cindy Summers
I went over to him, I'm like, what's the matter? He just looked at me and he said, I'm all right. I'm okay. I'm fine. And then you just fell down? And I just kind of freaked out. Come on.
Josh Mankiewicz
That is Cindy back in 2002, on the phone to 91191.
Cindy Summers
What happened to class?
Josh Mankiewicz
What happened?
Cindy Summers
Couldn't run that class.
Josh Mankiewicz
Okay. The family's on the waste of.
Cindy Summers
You can do it.
Josh Mankiewicz
Come on. Go on.
Cindy Summers
The Where I went now.
Josh Mankiewicz
Cindy remembered the basics of CPR from her days as a swimmer in middle school and says she did what she could.
Cindy Summers
I'd never done it before, other than on a dummy. So I really wasn't sure the exact sequence of how things should go.
Josh Mankiewicz
A platoon of paramedics, EMTs, and cops were only minutes away, but by then, it seemed the Grim Reaper had her husband in a death embrace.
Cindy Summers
Then police and fire got there and it was just. They had taken me out of the room and it was just all a blur from there.
Josh Mankiewicz
This story is about the why and the how of Todd Summers death that night.
Cindy Summers
What I want you to. What am I going to do?
Josh Mankiewicz
It is about the wife he left behind and the questions that have persisted for more than 20.
Cindy Summers
Well, we learned that they had some money issues.
Josh Mankiewicz
It is a story about private behavior and public shame.
Cindy Summers
She started having a lot of people over and a lot of parties shortly after his funeral. I understand everybody says it's the sex. We understood how it doesn't look good. The experts say that people do some pretty strange things in their grieving.
Josh Mankiewicz
And it is the story about investigators who found reasons to believe Todd Summers sudd was really a cold and calculated case of murder.
Cindy Summers
This was really strange for a 23 year old, seemingly healthy Marine to die. So why don't we run one more test because poison could have been an option here.
Josh Mankiewicz
I'm Josh Mankiewicz. Thanks for listening. Search for Trace of Suspicion to hear the full episode now.
Cindy Summers
Foreign.
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Podcast Summary: Dateline Presents: Trace of Suspicion
Podcast: Something About Cari (NBC News)
Episode Date: March 10, 2026
Host: Josh Mankiewicz (special preview)
Main Theme: The mysterious death of Marine Sergeant Todd Summers, the suspicion surrounding his case, and the enduring questions for his wife, family, and investigators.
This episode offers a gripping preview of "Trace of Suspicion," a series that dives into the heartland's chilling mysteries. While the main series is about Cari Farver, this preview focuses on the case of Todd Summers, a healthy 23-year-old U.S. Marine who died suddenly under suspicious circumstances in 2002. Host Josh Mankiewicz weaves a story of personal loss, unsettling behavior after death, and investigators’ growing suspicion that this was no ordinary tragedy.
"He got up and he walked towards the bathroom and turned around and just looked at me and, like, just couldn't catch his breath."
– Cindy Summers ([01:32])
"I went over to him, I'm like, what's the matter? He just looked at me and he said, I'm all right. I'm okay. I'm fine. And then you just fell down?"
– Cindy Summers ([01:45])
"Then police and fire got there and it was just. They had taken me out of the room and it was just all a blur from there."
– Cindy Summers ([02:47])
"She started having a lot of people over and a lot of parties shortly after his funeral. I understand everybody says it's the sex. We understood how it doesn't look good."
– Cindy Summers ([03:24])
"This was really strange for a 23 year old, seemingly healthy Marine to die. So why don't we run one more test because poison could have been an option here."
– Cindy Summers ([03:51])
"Trace of Suspicion" promises an in-depth look at tragic events where nothing is as it seems, offering not just the facts of sudden loss, but a window into suspicion, rumor, and the psychological aftermath that shadows the survivors. This preview episode sets the stage for a journey into unresolved mysteries, hinting at deeper twists to come.
To hear more, search for “Trace of Suspicion” for the full story.