Welcome to Mind Dive, Menninger's podcast for mental health professionals, with Robert Boland, MD, senior vice president and chief of staff, and Kerry Horrell, PhD. 
Podcast Focus
Each month, they dive into topics that fascinate them as clinical professionals and hopefully fascinate you, too. They examine dilemmas faced by professionals here at Menninger and colleagues across the nation while working with some of the most challenging cases. They explore the latest research and other trending topics on the minds of psychiatrists, psychologists and others who are interested in the treatment and study of the mind. Drs. Boland and Horrell make it a goal to cover information that gets little attention in formal training programs.
Most Recent Episodes
Episode 72: Understanding Lone Actor Violence
The hardest part of confronting targeted violence is seeing the storm form before it breaks. We sit down with Dr. Pedro Julnes, MD, a psychiatrist who is an expert in lone actor violence. During this discussion with our hosts, he traces how personal grievance hardens into ideology, why extreme overvalued beliefs aren’t delusions, and what real world cues tell us when risk is rising. Along the way, we compare lone actor violence with psychotic aggression, crimes of passion, and predatory harm, then focus on the behavioral signatures that cut across politics and subcultures.
Dr. Julnes presents the indicators of this type of violent behavior: distal warning signs versus proximal indicators. Distal signs include grievance that becomes central to identity, ideological framing, failure of sexual pair bonding, and a shift toward simplistic, absolute thinking. Proximal signs look like a suicide risk pathway: research, planning, preparation, capability testing, leakage, and rapid functional decline. Terrorist Radicalization Assessment Protocol (TRAP-18) provides a useful structure here, but the clinical mindset is familiar—act on behavior, anchor to specifics, and escalate safety when planning appears.
This conversation is practical, not abstract. We cover alliance-building with patients brought in under duress. We outline concrete steps clinicians can take. We also address the systems gap: many cases live in the gray zone of “no crime, no psychosis.” Hospitals, schools, and courts need coordinated threat assessment processes; the VA’s model shows it can be done.
If you want a grounded guide to spotting fixation, understanding internet-fueled contagion, and acting ethically when ideology meets behavior, this conversation delivers clarity without sensationalism. Subscribe for more thoughtful dives, share with a colleague who handles risk assessments, and leave a review to tell us what more you’d like to know on this topic and others.
Resources named in this episode:
Extreme Overvalued Beliefs: Clinical and Forensic Psychiatric Dimensions
Tahir Rahman, MD with Jeffrey Abugel
Threat assessment tool: Terrorist Radicalization Assessment Protocol-18 (TRAP-18) - TRAP 18 Manual - Global Institute of Forensic Research (J. Reid Meloy, PhD, ABPP)
For additional reading, see the source list at the end of the transcript.
Transcript
Meet the Hosts
Dr. Boland is an educator at heart with decades of experience teaching and mentoring psychiatry residents. In addition to his roles at Menninger, he is the executive vice chair of the Menninger Department of Psychiatry & Behavioral Sciences at Baylor College of Medicine.
A psychologist specializing in Young Adults, Dr. Horrell also loves teaching. She completed a predoctoral internship and postgraduate fellowship at Menninger and Baylor College of Medicine.
Both are well read, love canines (and have to resist rescuing too many) and are curious about many subjects.
Join Us
We hope you’ll join us on our podcast journey. And if you have a topic in mind that you would like us to dive into, drop us a note.
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