Crime

Ex-UFC Fighter Charged in New Jersey Jewelry Theft

CrimeApr 20, 2023

Ex-UFC Fighter Charged in New Jersey Jewelry Theft

Karl Roberson is accused of stealing more than $200,000 worth of jewelry and watches from a childhood friend.

20230420_KarlRoberson.jpg
Mixed martial artist Karl Roberson (left) was arrested and charged last month in connection with the home burglary of friend Ryan Leonard (right). (Image courtesy of Instagram.com/@njf_ceo)
Howell, N.J.—Ex-UFC fighter Karl Roberson has been charged with a series of crimes related to a burglary at the home of childhood friend Ryan Leonard in Howell, New Jersey.

According to the Howell Township (N.J.) Police Department, 32-year-old Roberson burglarized the home on West Farms Road with co-conspirator Dathan Thompson, also 32, on Dec. 26, 2022.

Roberson and Thompson are accused of stealing more than $200,000 in “exotic jewelry and valuables.”

In an interview with Fox News, the victim, Leonard, specified that the burglars made off with his $80,000 Rolex Presidential watch, $60,000 worth of Cuban chains, and a $30,000 bracelet, among other items.

Leonard said he’s known Roberson since he was 18 and the fighter was 14, both having grown up in nearby Neptune, New Jersey.

Leonard is a U.S. Army veteran who served in Iraq from 2009 to 2010, and later found success with his product development, sourcing, and supply chain management business NJF Worldwide.

Roberson experienced his own come-up story as a kickboxer-turned-mixed martial artist who earned a coveted spot in the Ultimate Fighting Championship (UFC), mixed martial arts’ most celebrated league, in 2017.  

His success, however, had recently taken a turn. 

 Related stories will be right here … 

After a somewhat promising start in the UFC, COVID reschedules, health issues, and a couple of missed weigh-ins seemed to turn the tide for the fighter starting in 2020.

In July 2022, after four consecutive losses, the UFC released Roberson.

Howell Township detectives said they used, “advanced training in technical applications,” as well as cell phone data analysis to investigate the home burglary.

Leonard told Fox News he recognized the pink shoes one of the suspects wore in home surveillance video of the burglary as those of Thompson. He said Thompson had traveled the world with Roberson as his “right-hand man.” 

Despite initially not believing police when they indicated Roberson could be involved, Leonard said he eventually realized the body language of the burglar—who, along with the other suspect, was wearing a hoodie, face mask, and gloves—matched that of his friend. 

“I couldn’t unsee it as much as I wanted to,” Leonard told Fox News. He believes Roberson was able to case the house via before and after images he had sent him while it was being built.  
 
On March 27, Roberson was arrested during a motor vehicle stop in Neptune. 

Police said he was driving a car associated with the burglary. While searching the vehicle, officers found a “defaced 9 mm handgun with an extended magazine,” suspected packages of crack cocaine, and other items associated with the burglary. 

Roberson has been charged with burglary, theft, criminal mischief, possession of a controlled dangerous substance, and several weapons charges. 

Thompson, who was arrested the same day as Roberson without incident at his home, is facing burglary, theft, and criminal mischief charges. 

The Latest

Coconut Grove Miami
Events & AwardsApr 13, 2026
Couture Announces New Show in Miami

The jewelry trade show is launching its first open-to-the-public event in Coconut Grove this November.

Watches on a table next to a coffee cup
WatchesApr 10, 2026
These Watches Have Increased in Value the Most Since 2018, Says Chrono24

The top-performing watch models may be surprising, with Rolex and several popular pandemic-era picks notably absent from the top 20.

Ophelia Eve Scroll Toggle Pendant
CollectionsApr 10, 2026
Ophelia Eve’s Toggle Pendant Holds Your Secrets

The “Scroll” toggle pendant, our Piece of the Week, opens to reveal a hidden message, mantra, or love letter written on washi paper.

lvajws image 1.jpg
Brought to you by
Las Vegas Antique Jewelry & Watch Show: Showcasing the Most Collectible Merchandise from Across the Globe

Gain access to the most exclusive and coveted antique pieces from trusted dealers during Las Vegas Jewelry Week.

National Jeweler columnist Sherry Smith, partner at The Retail Smiths
ColumnistsApr 09, 2026
Jewelry Demand Isn’t Stronger, Prices Are Just Higher

Jewelers who misinterpret the state of the jewelry market risk employing the wrong retail strategy, cautions columnist Sherry Smith.

Weekly QuizApr 09, 2026
This Week’s Quiz
Test your jewelry news knowledge by answering these questions.
Take the Quiz
Tiffany & Co. Nathalie Verdeille
MajorsApr 09, 2026
Tiffany & Co. Promotes Nathalie Verdeille to SVP, Chief Artistic Officer

In her newly expanded role, she will continue to oversee the jewelry category, as well as watches, home, and accessories.

Jacob & Co. The Godfather II Musical Watch
WatchesApr 09, 2026
Jacob & Co. Rolls Out Its Sequel to ‘The Godfather’ Musical Watch

“The Godfather II” watch plays two melodies from the mob film’s score, “The Godfather’s Waltz” and “The Godfather Love Theme.”

GIA iD100®
Brought to you by
Protect Your Customers and Your Business

You deserve to know what you are selling–to protect your customers as well as your business and your reputation.

Jesse Itzler
Events & AwardsApr 09, 2026
JCK Announces Jesse Itzler as 2026 Keynote Speaker

Organizers have also introduced the new JCK Talks Signature Series, as well as an offering of watch-focused workshops and lectures.

Alan Hodgkinson
SourcingApr 09, 2026
AGA To Honor ‘Quiet Leadership’ With New Award

The Alan Hodgkinson Medal recognizes gemologists who are consistently generous with their time and expertise.

Oris CEO Rolf Studer and Oris CFO Claudine Gertiser
WatchesApr 09, 2026
Oris Names New CEO, CFO

The Swiss watchmaker is changing up its executive leadership team as part of a restructuring.

Hearts On Fire What’s Your Signature Campaign Imagery
CollectionsApr 08, 2026
Hearts On Fire Celebrates 30 Years By Asking a Question

The “What’s Your Signature?” campaign invites women to think about how they see themselves.

41.82-carat Type IIb blue diamond recovered from Cullinan in January 2026
SourcingApr 08, 2026
Sale of 42-Carat Blue Diamond Gives Petra a Boost in Q3

The big diamond’s sale added to the company’s revenue though the market remains “challenging” overall, particularly for smaller goods.

American Gem Society Confluence Logo
Events & AwardsApr 08, 2026
AGS Confluence Returns with AI, Sustainability Sessions

Rob Bates of The Jewelry Wire will also moderate a panel on the state of the jewelry industry during the virtual event.

Dennis Buzz Busby and Randy Welch
Events & AwardsApr 08, 2026
TJS to Honor 2 Longtime Former Stuller Employees

The Jewelry Symposium will honor two industry veterans with lifetime achievement awards at its upcoming May event.

Isabel Delgado A necklace
TrendsApr 08, 2026
Amanda’s Style File: April’s Brilliant Birthstone

With their durability, brilliance, and beauty, diamonds are the perfect stone for everyday birthstone jewelry.

QVC Group logo
MajorsApr 07, 2026
QVC Group’s Latest Filing Calls Its Future Into Question

The retailer failed to file its annual report on time and said it may issue a going concern warning.

Headshot of National Jeweler columnist Peter Smith
ColumnistsApr 07, 2026
Peter Smith: A Tip to the Post Office on Workplace Culture

Smith recounts a recent trip to the post office that included an uncomfortable, embarrassing, and public exchange between two employees.

Retiring GIA CFO David Tearle and new GIA CFO John Cowley
GradingApr 07, 2026
GIA CFO David Tearle to Retire in June

John Cowley, who has more than 30 years of experience, is succeeding Tearle as the lab’s chief financial officer.

Gemology Geek Ignite collection tourmaline ring
CollectionsApr 07, 2026
Nerd Out Over Gemology Geek’s First Jewelry Collection

Founder Erica Silverglide has designed 35 colorful pieces set with fluorescing gemstones for the brand's first finished jewelry offering.

Ukrainian Jewelry | Contemporary Jewelry and Art Jewelry from Ukraine
CollectionsApr 07, 2026
Ukrainian Jewelers Highlighted In New Book

“Ukrainian Jewelry | Contemporary Jewelry and Art Jewelry from Ukraine” features 33 contemporary Ukrainian designers and studios.

Fope Golden Now Campaign Imagery
CollectionsApr 06, 2026
Fope’s New Jewelry Debuts Are Golden

“The Golden Now” campaign celebrates the here and now with the brand’s signature styles and a selection of its new pieces.

Former Signet executive Kecia Caffie
MajorsApr 06, 2026
Kecia Caffie, Corinne Bentzen No Longer With Signet Jewelers

Signet confirmed that Caffie, president of Zales and Banter, and Bentzen, who headed Blue Nile, have left the company.

Author Tanzy Ward and her book Precious Black Jewels The Bijou Material Culture of Black Victorians & Edwardians
CollectionsApr 06, 2026
Historian Tanzy Ward Pens Book on Black Victorians’ Jewelry

The antique jewelry dealer talks about the importance of including Black Americans in jewelry history and preserving their stories.

Gemfields emeralds
SourcingApr 06, 2026
Gemfields Reports $51M Loss in 2025

Both its mines faced challenges last year, from operational issues to disruptions in the market.

Screenshot of Taylor Swift's "Elizabeth Taylor" music video
CollectionsApr 03, 2026
Taylor Swift’s ‘Elizabeth Taylor’ Video Puts Jewelry Front and Center

Iconic pieces, like the Mike Todd Diamond Tiara, appear in the superstar’s new music video for her song inspired by the actress.

Neiman Marcus store in Fort Worth, Texas
MajorsApr 03, 2026
Saks Global Says It Will Emerge From Bankruptcy This Summer

The luxury retailer, which went Chapter 11 in January, announced Thursday that it has secured $500 million in exit financing.

×

This site uses cookies to give you the best online experience. By continuing to use & browse this site, we assume you agree to our Privacy Policy