A man carrying a gun and a knife was detained Friday by the Secret Service inside State Farm Stadium in Glendale, Arizona, where Charlie Kirk’s memorial event is set to take place Sunday, the agency confirmed to Fox News Digital. 

Secret Service spokesperson Anthony Guglielmi said the man was detained “in the stadium, but it was prior to the setup of any secure perimeter.” 

The individual allegedly told Secret Service agents that he was at the site to provide private security, The Washington Post also reported, citing a law enforcement official familiar with the matter. 

A federal source familiar with the investigation told Fox News that the man is a former law enforcement member from another state. 

A security guard keeps watch over at State Farm Stadium for Sunday’s memorial service for Charlie Kirk, Glendale, Arizona, on Friday, September 19, 2025. (Derek Shook for Fox News Digital)

The development comes as police are expecting approximately 100,000 people to attend Kirk’s memorial service at State Farm Stadium and an overflow arena on Sunday, Sept. 21, according to media reports.  

State Farm Stadium has fixed seating for 63,400 and can expand to over 73,000 for larger events, according to the venue. 

The Department of Homeland Security also designated the memorial service as a “Special Event Assessment Rating Level 1,” which is “reserved for events of the highest national significance” and the same severity as the Super Bowl.  

Charlie Kirk speaks at Utah Valley University on Sept. 10, 2025 in Orem, Utah, prior to his assassination. (Trent Nelson/The Salt Lake Tribune/Getty Images)

Erika Kirk, who is Charlie Kirk’s widow, President Donald Trump and Vice President JD Vance are among those set to speak at the event.