
Joni E. Johnston
Psychologist
10
APPEARANCES
7
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012
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Sep 18, 2026
Forensic Psychologist on Mica Miller: "There Were Absolute Glaring Red Flags"
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Joni JohnstonGUEST
Their history, I think the fact that he had a criminal record, I mean, there were some obvious ones, kind of superficial ones.

Joni JohnstonGUEST
I mean, there were so many red flags you know, in terms of, you know, just the relationship between the individuals, the fact that the, you know, that the death occurred so far away, which is very odd.

Joni JohnstonGUEST
The fact that she was in a place where she seems to really be putting her life together.

Joni JohnstonGUEST
The fact that there was a separation, that he was stalking her, that he was tracking her.

Joni JohnstonGUEST
You know, I could go on and on about some of the red flags in terms of, you know, is this a suicide or could this be something else? And there's obviously some evidence in terms of her buying a gun.
49: Richard Ramirez: The Making of the Night Stalker with Dr. Joni Johnston
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James Buddy DayHOST
We know that Ramirez suffered damage to both the prefrontal cortex and the temporal lobe, areas of the brain involved in judgment, impulse control, emotional regulation, and aggression.

Joni JohnstonGUEST
But finally, I think it was in the early 2000s, you know, people did try to meet with him and they were able to do limited testing.

James Buddy DayHOST
While Mercedes Ramirez is pregnant with Richard, she is exposed to industrial chemicals.
45: What People Really Want to Know About Serial Killers | Case Notes
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Joni JohnstonGUEST
I do think that there was some attempt, even at the beginning, to kind of carve out these exceptions.

Joni JohnstonGUEST
So I think there was never a time when people said, oh, soldiers would fall into that category.

Joni JohnstonGUEST
I think from the very beginning, maybe, you know, people who were in the mob There was an attempt to kind of carve out those individuals, which you can say why.

Joni JohnstonGUEST
Now, I think there's certainly an argument for carving out soldiers who were part of war and those kinds of things.
5 MINS LATER
31: Why Almost Everyone Gets the Insanity Defense Wrong | Case Notes
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Joni JohnstonGUEST
It's kind of saying basically that we need to be held accountable for behaviors that we understand and appreciate are wrong in our society.

Joni JohnstonGUEST
for a lot of people who are looking at different cases, particularly if there seems to be some kind of, quote, premeditation.
7 MINS LATER
B
10:17BluffADVERTISER
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Rerelease | The Psychology of Stalking, Obsession, and Control
No mention dialogue available.
BONUS: Inside the Mind of Rex Heuermann — with Dr. Joni Johnston
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Joni JohnstonGUEST
Well, there certainly is a precedent in terms of interviewing serial killers by the FBI's BAU unit because I think there is some hope and belief that information that you gather from people who committed these acts can help stop future ones you know can help capture and to that extent i think that's a valid um endeavor you know can we then talk to this person can we you know ask all the questions about access to victims about victimology why did you choose this particular person why did you not choose this particular person how did you make this person feel at ease you know how you know what was it like um fantasizing and not acting what made you decide to act How did you go from planning to implementation? There's a million different questions that may help stop somebody in the future.

Joni JohnstonGUEST
Certainly, it's worthwhile trying to solve other cases he may be responsible for.

Joni JohnstonGUEST
As a psychologist, I'm also saying, okay, my thoughts are, yes, we definitely want to look at how can you, Rex Heerman, help us stop other serial killers or maybe solve other serial killer cases.

Joni JohnstonGUEST
Also, how can we stop other troubled children from turning into you, you know, from turning into a serial killer? So I think there are clues oftentimes in people's backgrounds and looking at, you know, why didn't you go down a different path? What prevented you from getting help? At what point did you start fantasizing about hurting somebody? And who did you fantasize about hurting? And what was that? What were you thinking that was going to help you with? What purpose was that serving for you? Looking for intervention spaces along the way.

Joni JohnstonGUEST
So I think there's lots of good arguments for interviewing somebody like Rex Heerman.
6 MINS LATER

Jonathan HirschHOST
How has it changed? What do you make of this case now that it's come to a close?
Why Did He Plead?
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Joni JohnstonGUEST
I think we've gotten some clues about what creates a sexually sadistic serial killer, but there's a lot of things that we still don't know.

Joni JohnstonGUEST
But I think, you know, when we look at somebody like Rex Huberman, we look at this combination and it's always, unfortunately for us as researchers, it's always a unique combination of factors that lead somebody to wind up not only fantasizing about hurting other people, but actually carrying that out.

Joni JohnstonGUEST
You know, we all bring not just our childhood experiences, but we also bring our genetic makeup with us.

Joni JohnstonGUEST
So nobody's born, there's no such thing as a blank slate, right? That we, I know I was taught that many, many years ago that we're kind of blank slates, but we're not.
The Guilty Plea
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24:44speaker_1UNKNOWN
You're hearing Dr. Joni Johnston, a clinical psychologist who spent decades delving into the minds of criminals, like Rex Heuermann.

Joni JohnstonGUEST
And I think it was because I thought his family would continue to stand behind him.

Joni JohnstonGUEST
I think if he believed that his family thought he was innocent, and he could convince them of that, no matter what the evidence was to the contrary, then I think he would never have pleaded.

Joni JohnstonGUEST
But I, I think he's realized at this point that his family does believe he did this, and I think that changes everything for him.
S
29:37speaker_1UNKNOWN
Here again is Dr. Joni Johnston.

Joni JohnstonGUEST
I think that the things that Rex Heuermann did, the horrible things that he did, I think are in some respects some of the most precious things to him.

Joni JohnstonGUEST
I mean, this is not somebody who is a narcissist in the classic sense of BTK who's calling the media and, you know, wanting-
EERIE DOOR-BANGING RIDDLE IN MURDERS OF DENTIST & WIFE @ HOME, TOT KIDS ASLEEP
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Joni JohnstonGUEST
I mean, obviously, we don't know many facts about this case, but certainly the different level of violence that was inflicted upon the wife versus the dentist.
LISK Ep.37: Inside the Heuermann Family and the Infamous RH Jeep
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As far as this idea that he, Rex, could allegedly conceal this degree of a double life from her, what does that say about potentially him as a manipulator and her as a victim of this manipulation?

Joni JohnstonGUEST
There were certainly some things, such as the locked room in the basement where nobody was gonna go into.

Joni JohnstonGUEST
There were certainly some things there that I think most of us as spouses would wonder about or be curious about why we were not invited in there.

Joni JohnstonGUEST
There may have been certainly some clues of deception that she might not have seen or wanted to see.

Joni JohnstonGUEST
At the same time, I will also say, and, and this is something I feel very strongly about, I'm always so careful about including family members and pointing a finger at family members without there being evidence of their involvement.

Joni JohnstonGUEST
My husband goes to yoga almost every single day, and I'll tell you, I have not been to his yoga class, so I take it on faith that he is going to yoga.

Joni JohnstonGUEST
So could he be sneaking [laughs] down to the beach and meeting somebody? I mean, yes, I guess he could.
23:56
"I'm better now that you're on the phone." I was just stunned that the allegations so far have not seemed to cloud her, like, adoration for him.


