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48 Hours

Post Mortem | Cati Blauvelt: Death of a Soldier’s Wife 

Tue, 11 Mar 2025

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48 Hours Correspondent Peter Van Sant and Field Producer Kat Teurfs discuss John Blauvelt, a one-time military recruiter who went on the run with his teenage girlfriend after stabbing his wife, Cati, to death. When U.S. Marshals finally tracked him down six years later, he was using a different name and living with a new girlfriend across the country. They discuss the murder weapon, the pirate tattoo authorities used to identify Blauvelt, and the journal where he wrote "I did it." To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices

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Transcription

Chapter 1: Who are the key figures in the murder case of Cati Blauvelt?

69.844 - 89.19 Anne-Marie Green

Welcome back to 48 Hours Postmortem. I'm your host Anne-Marie Green and today we are talking to correspondent Peter Van Sant and field producer Kat Turfs about the case of John Blavelt, a military recruiter found guilty of stabbing his young wife Katie in Simpsonville, South Carolina back in 2016.

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90.63 - 103.223 Anne-Marie Green

However, before authorities had enough evidence to arrest him for murder, he went on the run with his 17-year-old girlfriend, Hannah Thompson. So Peter, Kat, thank you so much for joining us.

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103.323 - 104.123 Kat Teurfs

Hi Anne-Marie.

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104.163 - 105.385 Peter Van Sant

Hi Anne-Marie, great to be back.

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105.865 - 124.818 Anne-Marie Green

Und ein Erinnerung an alle, wenn ihr diese 48 Stunden nicht gesehen oder gehört habt, könnt ihr es in eurem Podcast-Feed unter diesem Video finden. Geht hören und dann kommt zurück, damit wir diese Konversation haben können. Also, ich möchte anfangen, mit dem Thema der Waffe zu sprechen. Es ist ein Knife und es ist nicht ein besonders großer Knife.

Chapter 2: What is known about the murder weapon used in Cati Blauvelt's case?

124.858 - 146.018 Anne-Marie Green

Und ich weiß, als ich es gesehen habe, dachte ich mir, You have to get so close to someone to kill them with this knife. It has to be sort of an intimate engagement. Peter, you were in the room with the murder weapon. I'm wondering what it was like. I know you've seen a lot of different pieces of evidence in murder cases, but what was it like to be in the room with this piece of evidence?

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146.298 - 168.713 Peter Van Sant

It's a real solemn, heartbreaking moment. This is the weapon that was one of the last things that Katie Blauvelt saw on this earth. It was selected by her killer. This killer was a trained soldier. He knew how to use knives. And Kinley Abey, the prosecutor, she suggested to me that he knew this would be a painful death.

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168.773 - 175.958 Peter Van Sant

And Blauvelt left the knife in her neck, because we know now this was a revenge killing, that he did that on purpose.

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176.358 - 178.942 Anne-Marie Green

And Kat, this was an important piece of evidence, obviously.

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179.022 - 184.911 Kat Teurfs

Right, it just shows how much force would have been used for that knife to actually break off.

184.971 - 186.273 Anne-Marie Green

No DNA found on it, though.

187.1 - 206.009 Kat Teurfs

So, at trial, the defense argued that there was no DNA linking to John Blauvelt, nothing at the scene that tied to him. And the prosecution said that there was DNA found under Katie's fingernails, but it was a partial match to John Blauvelt. You cannot conclusively say that that was John's DNA there.

206.329 - 223.925 Anne-Marie Green

So this is another case where people are just not what they seem. And the thing with John is that he's not just in the military, he's a military recruiter. And I thought to myself, you know, you get that position because you have the ability to influence, you have the ability to connect with young people, to convince them that joining the military is going to be something beneficial for them.

223.965 - 243.642 Anne-Marie Green

So, you know, Natürlich findet Katie John völlig vertraut. Sie wird von ihm gefeuert, so viel so, dass sie sich auch auf ihn einlässt. Viel zu der Überraschung, denke ich, von Katies Mutter. Aber Peter, du hast ein bisschen mit Katies Mutter darüber gesprochen. Und das konnte es nicht in die Stunde machen, also wollen wir diesen Sound spielen.

Chapter 3: How did John Blauvelt avoid capture after the murder?

363.862 - 365.383 Peter Van Sant

Yes, I frightened her.

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365.403 - 366.944 Anne-Marie Green

Why did they use a wide angle lens?

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369.364 - 373.687 Peter Van Sant

I don't know. You watch it in the show. I look like Lurch. I'm like nine feet tall.

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373.727 - 378.531 Anne-Marie Green

But you are nine feet tall. You do not look like Lurch. But Peter Van Zandt is a very tall man.

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378.631 - 395.062 Peter Van Sant

I'm six foot three. That's not too tall. But yeah, it looks silly. We had a good laugh in the screening room when we took a look at that. But she was a terrific investigator. Her heart was so into solving this case. The kind of people you want to have in law enforcement.

395.593 - 422.714 Anne-Marie Green

Let's talk about this investigation then. You know, as far as John Blauvelt's demeanor, he's told about this death and he's brought in for questioning. I know 48 Hours viewers were analyzing every second, every move that he made, the words that he chose. Okay, well, there was a lot going on there in the beginning. He did appear to be distressed.

422.754 - 425.596 Anne-Marie Green

I mean, we don't know what's going on in his head, but...

433.801 - 450.28 Kat Teurfs

He looked emotional, he looked like he was crying, he put his head in his hands. But as the interview progressed, he was laughing at points. The cop said he was very nonchalant about answering questions after being informed that his wife had just been murdered.

450.361 - 466.541 Anne-Marie Green

And then he takes off. Ich denke, viele Leute werden sich fragen, hey, wenn du verurteilt wirst, wie kannst du das einfach so verlassen? Aber wenn du nicht verurteilt wirst, dann gibt es keinen Grund, dich zu halten.

Chapter 4: What role did Hannah Thompson play in John Blauvelt's run from the law?

468.022 - 489.64 Peter Van Sant

Richtig. Und es gibt einen Niveau, einen Niveau der Beweise, der einem Gericht vorgegeben werden muss, um eine Warnung zu bekommen. Das hatten sie nicht ganz, an diesem Punkt. Sie hatten dieses Interview, das ihre Überraschungen sehr erhöhte. Sie wussten, dass das Körper, wo das Körper gefunden wurde, ein Ort war, wo Kinder mit John verheiratet waren.

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490.34 - 516.14 Peter Van Sant

So they had pieces of this puzzle, but they just didn't quite have enough. And Blauvelt takes off and he takes off with a 17-year-old girl, Hannah Thompson, with them. They're heading out on the road and this is where a 17-year-old, I think, can be brought into a circumstance psychologically from an adult of his age and his sophistication and his training and all of that.

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516.22 - 536.12 Peter Van Sant

I think she was a real victim at this point, being pulled into this horrible situation with a man how much she knew at that point that he had committed murder she learned a lot more later on was the whole thing was just a tragic situation but off she goes in his car and they're heading west

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536.701 - 550.845 Anne-Marie Green

Out of curiosity, did any of the investigators speculate about why he would even take Hannah with him? You would think that bringing Hannah would just increase the likelihood of him eventually getting caught.

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550.885 - 557.667 Peter Van Sant

Well, they supposedly were in love at that point. She told authorities later that she was in love with him.

558.22 - 573.987 Kat Teurfs

Sie sagte, dass sie ihm vertraut hat. Sie fühlte sich, als würde er sie sicher halten. Und ich denke, es wurde ihr vorgestellt, dass es eine Abenteuer sein wird. Du weißt, zu Beginn sah es lustig aus, aber als die Zeit auf der Runde ging, war das sehr schnell weg.

574.047 - 598.719 Peter Van Sant

Ich habe es nie gemacht. Ich meine, ich fuhr mehrere tausend Meilen und sie haben den Westpazifik und er bekommt sein... Sein Auto ist in der Mütze nahe Walla Walla, Washington. Du erinnerst dich wahrscheinlich von Bugs Bunny-Kartons. Und sie müssen weglaufen. Und sie leben ihre Leben im Grunde als unabhängige Menschen. Sie haben Geld für Essen gekostet. Sie schliefen ziemlich viel draußen.

598.779 - 604.982 Peter Van Sant

Und etwa einen Monat später, in dieser Reise, geht er weg, laut ihr. Und sie ruft ihre Eltern an.

616.715 - 639.374 Anne-Marie Green

Welcome back, everyone. So there's another irony in the case, and it comes up when John goes on the run. Peter, you have a really great exchange with a U.S. Marshal, where he makes the point that John had training with the Army, and the government provided this training to him, ironically. And then you sort of interject, right, saying the training was to...

Chapter 5: How did John Blauvelt's military training aid his evasion from authorities?

834.552 - 845.701 Peter Van Sant

Es ist schwierig, Annemarie, weil sie weiß, dass sie ihre Star-Witness sein wird in jedem Gerichtsverfahren gegen Blau-Welt. Und es ist also ein leckerer Tanz hier.

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845.761 - 851.565 Kat Teurfs

Aber es ist wichtig zu bemerken, dass die Behörden nicht denken, dass Hannah Thompson tatsächlich da war, als Katie getötet wurde.

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851.705 - 867.135 Anne-Marie Green

Richtig. So, yes, we find out that, you know, six years after Blauvelt fled, the U.S. Marshals are able to actually track him down to where he's living with his new girlfriend in Medford, Oregon. How did they actually track him down, though?

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867.155 - 885.802 Kat Teurfs

You know... Die Berichterstatter sprachen mit Hannah über die Jahre und Hannah sagte, dass er ihr erzählt hat, dass er eine langfristige Freundin hatte, mit der er lebte. Und die Berichterstatter konnten diese Informationen nutzen und wirklich aufhören. Sie fanden ein Telefonnummer, das ein altes Telefonnummer für Blauvelt war.

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885.862 - 901.05 Kat Teurfs

Und sie sahen, dass dieses Telefonnummer benutzt wurde, um diese andere Frau zu schicken, von der sie nicht sicher war, wer sie damals war. Aber sie fanden eine Anrufnummer für diese Frau und es endete mit dieser Freundin. Und dann fingen sie einfach an, das Haus zu stecken. Und dann, weißt du, war das Piraten-Tattoo.

901.07 - 921.551 Peter Van Sant

Und wo sie einige der Punkte hier verbunden haben, erinnere dich daran, dass sein Fahrrad in Washington in den Müll gefangen wurde. Als Hannah ihre Eltern angerufen hat, war sie in Oregon. Und so, als sie auf diesem Telefon entdeckt haben, dass er diese Frau geschrieben hat, lebte diese Frau in Medford, Oregon, also geografisch. The news was tightening.

921.631 - 942.587 Peter Van Sant

They said, this must be the area that he is in. And don't forget, at this point, he was Ben Klein. He was not John Blauvelt. He had changed his name, which would make it even more difficult to try to identify this guy. But they were able to get her address and she was an upstanding woman in the community, a full-time job.

942.827 - 958.902 Peter Van Sant

She was the breadwinner in the family and John was sort of a stay-at-home partner for her. In fact, when they observed him one day, I think he was putting together, was it a portable swimming pool out on the yard? Do you remember that cat?

959.458 - 969.781 Kat Teurfs

Ja, es war ein heißer Tag und er war draußen mit diesem Kittepool und er war ohne Shirt. Und so konnten die Marshals das Tattoo auf ihn sehen. Und er sah so anders aus. Er hatte einen langen Haar, er hatte ein bisschen Gewicht.

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