Henderson police arrested 34-year-old Matthew Deperno on October 26, 2024, after discovering him with multiple firearms in a parking garage at the M Resort Spa Casino. Officers responded to the scene following reports of a suspicious person, leading to the recovery of several weapons and ammunition from the suspect’s vehicle.
How the arrest unfolded in Henderson

The Henderson Police Department took Deperno into custody without incident after patrol officers identified him in the parking structure of the M Resort, located near St. Rose Parkway and Las Vegas Boulevard. According to the Henderson Police Department, the initial call came in as a report of a suspicious individual. Upon arrival, officers observed items in plain view that prompted further investigation.
Authorities confirmed that Deperno was in possession of multiple firearms at the time of the encounter. He was subsequently booked into the Henderson Detention Center on charges related to the possession of the weapons.
What charges does the suspect face?
Following the investigation, Henderson police booked Deperno on charges of carrying a concealed weapon without a permit and possession of a dangerous weapon, according to official jail records. The investigation into the circumstances surrounding why the suspect was armed at the casino remains active.
While casino properties in the Las Vegas Valley frequently employ private security and cooperate with local law enforcement to maintain safety, police have not indicated that the suspect had specific plans to target the M Resort. The arrest highlights the ongoing coordination between resort security personnel and the Henderson Police Department in monitoring public spaces for potential threats.
Key facts regarding the incident
- Location: M Resort Spa Casino, Henderson, Nevada.
- Date of Arrest: October 26, 2024.
- Suspect: Matthew Deperno, 34.
- Agency: Henderson Police Department.
- Status: The suspect was booked into the Henderson Detention Center; the case remains under review by local prosecutors.
As the legal process moves forward, the Henderson Police Department has not released further details regarding the suspect’s motive or his prior criminal history. The department continues to encourage the public to report suspicious activity immediately to help maintain security in high-traffic entertainment areas.
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