Episode 231: Lance Leising – Jason Derek Brown, FBI Most Wanted Fugitive

Retired agent Lance Leising served in the FBI for nearly 23 years.

In this episode of FBI Retired Case File Review, he reviews his FBI Ten Most Wanted fugitive investigation of Jason Derek Brown.

Jason Brown is wanted for the execution-style murder and armed robbery of Keith Palomares, a 24-year-old armored car guard, carrying the weekend deposits of a movie theater in Phoenix, Arizona in November 2004. Brown fled with the money and is still at large. The FBI is offering a reward for up to $200,000 for information leading directly to the arrest of Jason Brown. Thank you to the Phoenix Division and current case agents for allowing Lance to speak with me about this active fugitive investigation.

Jami Brown Martin, Jason Brown’s sister, is also a guest on this episode.

Jami, who lives every day with the horrible truth and many consequences of his brutal act, provides her personal insights about her brother, his actions immediately following the murder, and why she’s cooperating with the FBI in the efforts to locate and apprehend him.

Lance, who has a law degree from the University of Cincinnati College of Law began his 25 years of law-enforcement experience as a prosecuting attorney. He spent his entire Bureau career in the Phoenix Division, and 19 of his 23 years on the Violent Crime/Major Offender Squad, where he specialized in fugitive, robbery, kidnapping, interstate threats and homicide investigations. He served on the Phoenix FBI SWAT Team for 22 years, including seven years as a Team Leader and five years as the SWAT Supervisor.

For the last five years of his career, Lance was the Supervisory Special Agent over the Phoenix FBI Desert Hawk Violent Crimes Task Force.

Lance served three Temporary Duty Assignments in Afghanistan, spending over one year as an FBI tactical operator embedded with US military teams and a Criminal Case Agent serving as Assistant Legal Attaché. Lance was the FBI On-Scene Commander for hundreds of Phoenix SWAT and violent crime critical incident deployments, to include active shooters, hostage barricade situations, high-risk arrests, high-level dignitary protection, major events and complex warrant service during domestic and overseas deployments.

Lance was certified as an FBI Crisis Management Coordinator, Tactical Instructor, Firearms Instructor, Active Shooter Instructor and Legal Advisor.

Lance retired from the FBI on August 31, 2020, and is currently employed by Amazon Global Security in their Critical Incident Operations section as an Industry Specialist in Crisis Management.

Special Agent (Retired)

Lance Leising

March 1998 – September 2020









“This case is one I think was a failure in my career because we haven’t caught Jason. It’s not totally solved until you can bring justice to the victim’s family.”—Retired Agent Lance Leising









“It’s a very difficult situation, but I know in my heart I’m doing the right thing by cooperating with the FBI.”—Jami Brown Martin (Sister of FBI Top Ten Fugitive)

The following are links to articles and videos about the FBI’s Ten Most Wanted program and fugitive Jason Derek Brown:

FBI Website – Ten Most Wanted Fugitives FAQ

EastValleyTribune.com, 11/29/2004:  Shooter at large after armored car ambush kills 1

Phoenix Magazine, 3/1/2014: Arizona’s Most Wanted

Dateline  3/24/2013: “The Fugitive” – Jason Derek Brown

ABC15 Phoenix: Jason Derek Brown

True Crime Daily: Wanted-Former Mormon missionary robs armored truck, kills guard

Click here to listen to additional FBI Retired Case File Review podcast episodes featuring fugitive investigations.

Jason Brown’s official wanted flyer. He has been a fugitive since 2004.















If you have any information concerning this person, please contact the FBI’s Toll-Free Tipline at 1-800-CALL-FBI, your local FBI office, or the nearest American Embassy or Consulate.


CENTER OF ATTENTION is the gripping and ultimately hopeful story of the sister of one of the world’s most wanted fugitives and her journey to accept that despite being a product of the same crazy environment as her brother, her life and path are her own.












Jami and her brother Jason during happier times.













Jerri Williams

View posts by Jerri Williams
Jerri Williams, a retired FBI agent, author and podcaster, jokes that she writes about the FBI to relive her glory days. After 26 years with the Bureau specializing in major economic fraud and corruption investigations, she calls on her professional encounters with scams and schemers to write police procedurals inspired by true crime FBI cases in her Philadelphia FBI Corruption Squad crime fiction series featuring flawed female FBI agent Kari Wheeler. Jerri’s FBI for Armchair Detectives nonfiction series enables readers to discover who the FBI is and what the FBI does by debunking misconceptions about the FBI in books, TV, and movies. Her books are available as ebooks, paperbacks, and audiobooks wherever books are sold. She’s also the host of FBI Retired Case File Review, a true crime podcast with more than 300 episodes available on all popular podcast apps and YouTube.

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